ADDITIONAL NOTES AND ILLUSTRATIONS TO CHAPTER II.
Reading edition
A.—ON THE ABSTRACT REASONINGS INVOLVED IN NATURAL THEOLOGY.
In his discourse on Natural Theology, Lord Brougham writes thus (p. 78):—"The whole reasoning proceeds necessarily upon the assumption that there exists a being or thing separate from, and independent of, matter, and conscious of its own existence, which we call mind. For the argument is, 'Had I to accomplish this purpose, I should have used some such means'; or, 'Had I used these means, I should have thought I was accomplishing some such purpose.' Perceiving the adaptation of the means to the end, the inference is, that some being has acted as we should ourselves act, and with the same views. But when we so speak, and so reason, we are all the while referring to an intelligent principle or existence; we are referring to our mind, and not to our bodily frame." ... "The belief that mind exists is essential to the whole argument by which we infer that the Deity exists. This belief ... is the foundation of Natural Theology in all its branches; and upon the scheme of materialism no rational, indeed no intelligible, account can be given of a first cause, or of the creation or government of the universe."
In a foot-note, Lord Brougham adds:—"It is worthy of observation that not the least allusion is made in Dr. Paley's work to the argument here stated, although it is the foundation of the whole of Natural Theology. Not only does this author leave entirely untouched the argument à priori (as it is called), and also all the inductive arguments derived from the phenomena of mind, but he does not even advert to the argument upon which the inference of design must of necessity rest—that design which is the whole subject of his book. Nothing can more evince his distaste or incapacity for metaphysical researches. He assumes the very position which alone sceptics dispute. In combating him they would assert that he begged the whole question; for certainly they do not deny, at least in modern times, the fact of adaptation. As to the fundamental doctrine of causation, not the least allusion is ever made to it in any of his writings,—even in his Moral Philosophy."
It is when reviewing this last-named treatise that Dr. Whewell remarks (History of Moral Philosophy, p. 169):—
"The fact is that Paley had no taste, and therefore we may be allowed to say that he had little aptitude, for metaphysical disquisitions. In this there would have been no blame, if he had not entered into speculations which, if they were not metaphysically right, must be altogether wrong. We often hear persons declare that they have no esteem for metaphysics, and intend to shun all metaphysical reasonings; and this is usually the prelude to some specimen of very bad metaphysics: for I know no better term by which to designate the process of misunderstanding and confounding those elements of truth which are supplied by the relations of our own ideas. That Paley had no turn or talent for the reasoning which depends on such relations, is plain enough."
The reader may with little trouble collect for himself what is meant by bad metaphysics from the following extracts. The first is Lord Macaulay's criticism on the metaphysics of the Schools, which he introduces into his essay on Francis Bacon, as follows:—
"By stimulating men to the discovery of useful truth, he" (Bacon) "furnished them with a motive to perform the inductive process well and carefully. His predecessors had been, in his phrase, not interpreters, but anticipators of nature. They had been content with the first principles at which they had arrived by the most scanty and slovenly induction. And why was this? It was, we conceive, because their philosophy proposed to itself no practical end—because it was merely an exercise of the mind. A man who wants to contrive a new machine or a new medicine has a strong motive to observe accurately and patiently, and to try experiment after experiment. But a man who merely wants a theme for disputation or declamation has no such motive. He is therefore content with premises grounded on assumption, or on the most scanty and hasty induction. Thus, we conceive, the schoolmen acted. On their foolish premises they often argued with great ability; and as their object was "assensum subjugare, non res" (Nov. Org. I. Aph. 29), to be victorious in controversy, not to be victorious over nature, they were consistent. For just as much logical skill could be shown in reasoning on false as on true premises."[44] Of course, if any genuine metaphysical philosophy exists at all, its right and real object must be to try and discover true premises of the more abstract sort—premises, the truth of which affects the procedure of all the ancillary series.[45]
Our next quotation contains Hume's sentence of execution rather than critique upon metaphysics as he saw them in connection with dogmatic theology. First, for his fiery anathema:—
"When we run over libraries, persuaded of these principles, what havoc must we make? If we take in our hand any volume of divinity or School metaphysics, for instance, let us ask, Does it contain any abstract reasoning concerning quantity or number? No. Does it contain any experimental reasoning concerning matters of fact and existence? No. Commit it then to the flames: For it can contain nothing but sophistry and illusion." (Inquiry concerning Human Understanding, § XII.) Alas for certain of Hume's own speculations!
The student of Positivism knows how this fierce invective was echoed and re-echoed by Comte and his followers. They, however, omitted the qualifying word "School," which Hume prefixed to metaphysics. With Comte, metaphysic of every kind was "anathema maranatha"; and even psychology got excommunicated, by way of making "a clean sweep."
Hume, on the contrary, had an idea of what philosophy ought to be, and thus outlined his preparation for a Metaphysic of the Future:—
"The only method of freeing learning, at once, from these abstruse questions, is to inquire seriously into the nature of human understanding, and show, from an exact analysis of its powers and capacity, that it is by no means fitted for such remote and abstruse subjects. We must submit to this fatigue in order to live at ease ever after: and must cultivate true metaphysics with some care, in order to destroy the false and adulterate. Indolence, which, to some persons, affords a safeguard against this deceitful philosophy, is, with others, overbalanced by curiosity; and despair, which at some moments prevails, may give place afterwards to sanguine hopes and expectations. Accurate and just reasoning is the only catholic remedy, fitted for all persons and all dispositions; and is alone able to subvert that abstruse philosophy and metaphysical jargon, which, being mixed up with popular superstition, renders it in a manner impenetrable to careless reasoners, and gives it the air of science and wisdom.
"Besides this advantage of rejecting, after deliberate inquiry, the most uncertain and disagreeable part of learning, there are many positive advantages, which result from an accurate scrutiny into the powers and faculties of human nature. It is remarkable concerning the operations of the mind, that though most intimately present to us, yet, whenever they become the object of reflection, they seem involved in obscurity; nor can the eye readily find those lines and boundaries which discriminate and distinguish them. The objects are too fine to remain long in the same aspect or situation, and must be apprehended, in an instant, by a superior penetration, derived from nature, and improved by habit and reflection. It becomes, therefore, no inconsiderable part of science barely to know the different operations of the mind, to separate them from each other, to class them under their proper heads, and to correct all that seeming disorder in which they lie involved, when made the object of reflection and inquiry. This task of ordering and distinguishing, which has no merit when performed with regard to external bodies, the objects of our senses, rises in its value when directed towards the operations of the mind, in proportion to the difficulty and labour which we meet with in performing it. And if we can go no farther than this mental geography, or delineation of the distinct parts and powers of the mind, it is at least a satisfaction to go so far; and the more obvious this science may appear (and it is by no means obvious), the more contemptible still must the ignorance of it be esteemed, in all pretenders to learning and philosophy." Ibid. Section I.
It seems worth while to consider what the effects might have been, had Hume been faithful to his own idea.[46] In the first place he would have remedied the weakness pointed out by Macaulay in the premises of the schoolmen, which were in fact little better than sententious maxims often derived from mistranslated passages of Scripture, one-sided opinions of the Fathers, and other sources of doubtful value. These, Hume would have abscided altogether, and rested his "true metaphysics" upon such principles as survived a searching inquiry into the conditions of Human knowledge. Hence, secondly, he would have rendered a great service to Divinity itself, which can never be benefited by such arguments as have been described, but must look for a safe alliance to a synthesis of Faith and Reason. And in the third place he might have probably given to his country a critical Philosophy adapted to English modes of Thought. Kant's mind was fired by a spark of Hume's kindling, but when we think what might have been the shape and acceptance of Kant in this country had Hume heralded him by a critique of Reason, it is impossible to read the great Scotchman's writings without a feeling of disappointment.[47]
It would however be unjust to omit the fact that Hume did really entertain a serious intention of dealing with these difficult questions. Thus much is expressed in his earliest work, and we may conjecture that literary disappointment was at least one cause of that later preference for "easy philosophy" which contrasts so strongly with the programme of his treatise on Human Nature. Few programmes were ever more vigorously outlined, than the ensuing.
"From hence," he says, "in my opinion, arises that common prejudice against metaphysical reasonings of all kinds, even amongst those who profess themselves scholars, and have a just value for every other part of literature. By metaphysical reasonings, they do not understand those on any particular branch of science, but every kind of argument, which is any way abstruse, and requires some attention to be comprehended. We have so often lost our labour in such researches, that we commonly reject them without hesitation, and resolve, if we must for ever be a prey to errors and delusions, that they shall at least be natural and entertaining. And, indeed, nothing but the most determined scepticism, along with a great degree of indolence, can justify this aversion to metaphysics. For, if truth be at all within the reach of human capacity, 'tis certain it must lie very deep and abstruse; and to hope we shall arrive at it without pains, while the greatest geniuses have failed with the utmost pains, must certainly be esteemed sufficiently vain and presumptuous. I pretend to no such advantage in the philosophy I am going to unfold, and would esteem it a strong presumption against it, were it so very easy and obvious."—Treatise on Human Nature, Introduction, p. 12.
In these sentences Hume has sufficiently condemned the vulgar objections brought against abstract reasoning. Deep and difficult questions can be discussed in no other manner; and what is often called a popular treatise on some subject of philosophic inquiry can never be more than a statement of its writer's opinions, or possibly of his sentimental prejudices.
The next paragraph contains Hume's earliest[48] sketch of that critical inquiry into Human Nature on which he proposed to base all future philosophy. It is of course deeply interesting.
"'Tis evident that all the sciences have a relation, greater or less, to human nature; and that however wide any of them may seem to run from it, they still return back by one passage or another. Even Mathematics, Natural Philosophy, and Natural Religion, are in some measure dependent on the science of Man; since they lie under the cognizance of men, and are judged of by their powers and faculties.
"'Tis impossible to tell what changes and improvements we might make in these sciences were we thoroughly acquainted with the extent and force of human understanding, and could explain the nature of the ideas we employ, and of the operations we perform in our reasonings. And these improvements are the more to be hoped for in natural religion, as it is not content with instructing us in the nature of superior powers, but carries its views further, to their disposition towards us, and our duties towards them; and consequently we ourselves are not only the beings that reason, but also one of the objects concerning which we reason."
"If, therefore, the sciences of mathematics, natural philosophy, and natural religion, have such a dependence on the knowledge of man, what may be expected in the other sciences, whose connection with human nature is more close and intimate?... In these four sciences of Logic, Morals, Criticism, and Politics, is comprehended almost everything which it can any way import us to be acquainted with, or which can tend either to the improvement or ornament of the human mind.
"Here then is the only expedient, from which we can hope for success in our philosophical researches, to leave the tedious lingering method, which we have hitherto followed, and instead of taking now and then a castle or village on the frontier, to march up directly to the capital or centre of these sciences, to human nature itself; which being once masters of, we may everywhere else hope for an easy victory. From this station we may extend our conquests over all those sciences which more intimately concern human life, and may afterwards proceed at leisure to discover more fully those which are the objects of pure curiosity. There is no question of importance, whose decision is not comprised in the science of man; and there is none, which can be decided with any certainty, before we become acquainted with that science. In pretending, therefore, to explain the principles of human nature, we in effect propose a complete system of the sciences, built on a foundation almost entirely new, and the only one upon which they can stand with any security."[49] Ibid. pp. 13-14.
The present writer has a special interest in citing these passages, because they do in fact defend as well as describe the procedure of his very next chapter.
Such then at an early age was Hume's keen-edged critical appreciation of those intellectual conditions required for a Philosophy of the Sciences, or as he calls it, the "true Metaphysics." In order to supplement his clever and clear idea by a very practical delineation of the metaphysical territory, we turn to another great thinker, the founder of our modern natural science, the great Lord Verulam.[50]
Bacon divides Philosophy according to its objects, which are three,—God, Nature, Man. Take, then, Natural Philosophy; it is well said that the truth of nature lies deeply hidden, and it is also well said that the Producer imitates Nature. Natural Philosophy divides itself accordingly into the inquisition of causes and the production of effects; it is both speculative and operative. There is indeed an intercourse between causes and effects, and both these kinds of knowledge. All true and fruitful Natural Philosophy has a double scale or ladder,—ascendent and descendent; ascending from experiment to first causes; descending thence to fresh experiment and always fresh productiveness.[51]
The ascending half is divided into two moieties, of which one is the science of Physics, the other of Metaphysics. In distinguishing these two, Bacon so far agrees with antiquity as to say,—"That Physic supposes in nature only a being and moving and natural necessity; whereas Metaphysic supposes also a Mind and Idea. For that which I shall say comes perhaps to this."[52] Or, to put it in another light, he writes elsewhere:—"Physique, taking it according to the derivation, and not according to our idiom for medicine, is situate in a middle term or distance between natural history and Metaphysique. For natural history describeth the variety of things; Physique, the causes, but variable or respective causes; and Metaphysique, the fixed and constant causes."[53]
In order to clear the way for his Metaphysic of the future, Bacon subjects what had been called by that name to a critical process. He separates from it a kind of theoretical philosophy, the attainment of which he considered doubtful, though he desired that it should be attempted, as the ultimate goal of human wisdom. The object of the separation is, therefore, to leave his metaphysical science within the limits of what is certainly attainable,—a fact not to be lost sight of in its relation to the abstract subjects in which we are now specially interested. The separated realm of knowledge Bacon calls "First and Summary Philosophy"; it is a "common ancestor to all knowledge,"[54] whereas Metaphysic belongs to the philosophy of Nature. It is at the apex of his pyramid of knowledges,[55]—the basis being a collection of natural facts—the "stage next the basis," (an investigation of causes variable and immersed in material existence,) is called "Physique—the stage next the vertical point is Metaphysique."[56] To enter clearly into Bacon's meaning, two questions should be answered: one, what was the wisdom that older Metaphysicians pursued, respecting which he did not himself feel sanguine? and the other, what remained in his thought the province of practical Metaphysique?
It is obvious that a wisdom which shall gather up all that every other realm of wisdom produces, cast it into Thought's winepress, and extract the rarest vintage of Truth, has been the vision of every age since men began to inquire and to reason. If this wisdom were possible, it would become to us an alphabet of the Universe; we should obtain a clear insight into the world as it is, and the foregone work of its Creator. Each of us might truthfully say:—
"Der du die Welt umschweifst, Geschäftiger Geist, wie nah' fühl ich mich dir!"
It needs but a glance at Bacon's indefinite outline of a First and Summary Philosophy,[57] to see that it must always be greeted by two opposite sentences of condemnation. A large section of its censors will pronounce the meagreness of its contents "a gentle riddance," or perhaps describe the contents themselves still more harshly as "rubbish shot here." Another section may compare all that it leaves for Metaphysics to the year without its spring, or Shakespeare's masterpiece of philosophy with the part of Hamlet left out.
Let us see then how the reserved province was parcelled out.—Bacon himself remarks:—"It may fairly therefore now be asked, what is left remaining for Metaphysic? Certainly nothing beyond nature; but of nature itself much the most excellent part." Most excellent because "Physic handles that which is most inherent in matter and therefore transitory, and Metaphysic that which is more abstracted and fixed. And again, that Physic supposes in nature only a being and moving and natural necessity: whereas Metaphysic supposes also a mind and idea."[58]
This search into the Mind of Nature is divided into the investigation of two kinds of causes, still called the Formal and the Final. Bacon's doctrine of Forms—the Philosophy in which is embraced "Natura naturans"—nature engendering nature—the Queen of Art—and the Regent of Production, constitutes one of the most difficult parts of the Novum Organum, the Advancement, and the De Augmentis; and may have been one chief provocative to King James' irreverent similitude. It might, according to some writers, even now prove a veritable "peace of God" could we only grasp its full meaning. "From the discovery of Forms," says Bacon, "results truth in speculation and freedom in operation."[59] And his latest commentator believes that this field of discovery has not been truly explored, because its very idea has been only imperfectly apprehended. The whole question, however, belongs to a future Chapter of this Essay, where we propose examining the Law of Production in its most refined and abstract shape. Yet one further remark may be allowed here. According to Francis Bacon, one "respect which ennobles this part of Metaphysic, is that it enfranchises the power of men to the greatest liberty, and leads it to the widest and most extensive field of operation.... For physical causes give light and direction to new inventions in similar matter. But whosoever knows any Form, knows also the utmost possibility of superinducing that nature upon every variety of matter, and so is less restrained and tied in operation, either to the basis of the matter or to the condition of the efficient."[60]
We are more concerned, at the present stage of this Essay, with the second portion of Bacon's Metaphysique—the Inquiry into Final Causes. They are described in the Advancement as not having been neglected before its great Author's time, but as having been "misplaced." "For they are," he writes in the De Augm. (E. & S. iv. p. 363) "generally sought for in Physic, and not in Metaphysic. And yet if it were but a fault in order I should not think so much of it; for order is matter of illustration, but pertains not to the substance of sciences. But this misplacing has caused a notable deficience, and been a great misfortune to Philosophy. For the handling of final causes in Physics has driven away and overthrown the diligent inquiry of physical causes." ... "And I say this, not because those final causes are not true and worthy to be inquired in metaphysical speculations; but because their excursions and irruptions into the limits of physical causes has bred a waste and solitude in that track. For otherwise, if they be but kept within their proper bounds, men are extremely deceived if they think there is any enmity or repugnancy at all between the two." (Ibid. p. 364.) Bacon's meaning is indeed clear enough to those who consider his examples. We do not learn how clouds are produced by being told they serve for watering the earth. It is no history of our earth itself, to say that its "solidness is for the station and mansion of living creatures." "To know the actual nature of a thing," observes an Oxford commentator on the Organum, "we must investigate it in and for itself, not for its results."[61]
Perhaps one of the most curious facts relating to the "misplacement" of Final Causes is that few more flagrant instances of that abuse can be found than some which occur in the field, not of physical but of moral science. The following remarkable example is from an argument framed by Mr. James Mill against Sir J. Macintosh, which appears all the more worthy of quotation, because it is reproduced and approved by Mr. J. Stuart Mill. The whole argument deserves perusal as showing how easily an acquired and customary kind of association will sometimes predominate over free thought; but for our present object a few passages will suffice. The italics are not Mr. Mill's, but are here marked for the purpose of guiding the reader's eye to those steps which lead from final cause (or motive) to interest, from interest to Utility in its grossest form, the artificial creation, namely, of our spur to interested action, dignified by this author with the sacred name of Morality, both in essence, i.e., what makes an act to be moral—and in respect of our moral sense, i.e., what are the sentiments with which we regard our own actions and those of other persons.
"Men make classifications, as they do everything else, for some end. Now, for what end was it that men, out of their innumerable acts, selected a class, to which they gave the name of moral, and another class, to which they gave the name of immoral? What was the motive of this act? What its final cause?
"Assuredly the answer to this question is the first step, though Sir James saw it not, towards the solution of his two questions, comprehending the whole of ethical science; first, what makes an act to be moral? and, secondly, what are the sentiments with which we regard it?
"We may also be assured, that it was some very obvious interest which recommended this classification; for it was performed, in a certain rough way, in the very rudest states of society.
"Farther, we may easily see how, even in very rude states, men were led to it, by little less than necessity.... They had no stronger interest than to obtain the repetition of the one sort, and to prevent the repetition of the other.... And here we clearly perceive the origin of that important case of classification, the classification of acts as moral and immoral. The acts, which it was important to other men that each individual should perform, but in which the individual had not a sufficient interest to secure the performance of them, were constituted one class. The acts, which it was important to other men that each individual should abstain from, but in regard to which he had not a personal interest sufficiently strong to secure his abstaining from them, were constituted another class. The first class were distinguished by the name moral acts; the second by the name immoral.
"The interest which men had in securing the performance of the one set of acts, the non-performance of the other, led them by a sort of necessity to think of the means. They had to create an interest, which the actor would not otherwise have, in the performance of the one sort, the non-performance of the other. And in proceeding to this end, they could not easily miss their way. They had two powers applicable to the purpose. They had a certain quantity of good at their disposal, and they had a certain quantity of evil.... And this is the scheme which they adopted; and which, in every situation, they have invariably pursued. The whole business of the moral sentiments, moral approbation, and disapprobation, has this for its object,—the distribution of the good and evil we have at command, for the production of acts of the useful sort, the prevention of acts of the contrary sort. Can there be a nobler object?"[62]
Some people may think that all nobleness is here taken away from moral distinctions. Others may wonder how such refined calculation could take place "in the very rudest states of Society." Many more will feel that this factitious interest is not the moral sentiment of which they are themselves conscious. We defer these points, however, to a future chapter, and are satisfied now with calling attention to the "misplacement" of final causes. To any modern versed (as Bacon was) in the wisdom of the mediæval schools, the following parallel might appear complete. Ask two questions—what are clouds?—what are moral distinctions?—let a "why" be substituted for the "what." Both are classified by men, both may be defined by their subserviency to human interests,—it is sufficient to discover some use in each. Moral distinctions exist for the benefit of society, clouds are for watering the earth. An earth-watering contrivance describes not only one use but the whole nature of a cloud; and for morality can a nobler definition be found than that of a notion invented and named on Utilitarian principles and promoting a public interest?[63] Doubtless morality does benefit mankind—doubtless clouds do water the earth. But in either case is the good effect its full and comprehensive "why?"—to say nothing of the desiderated "what?"
Francis Bacon (as we have seen) strongly affirmed that between Physical Causes and Final Causes "kept within their proper bounds, men are extremely deceived if they think there is any enmity or repugnancy at all." The manner in which, according to the Baconian doctrine, these two sets of causes harmonize and supplement each other, so as conjointly to subserve the highest purpose of Natural Theology, cannot be better explained than in the words of Bacon's late lamented Editor, Mr. R. Leslie Ellis:—
"It is not sufficiently remarked that final causes have often been spoken of without any reference to a benevolent intention. When it is said that the final cause of a stone's falling is 'locus deorsum,' the remark is at least but remotely connected with the doctrine of an intelligent providence. We are to remember that Bacon has expressly censured Aristotle for having made use of final causes without referring to the fountain from which they flow, namely the providence of the Creator. And in this censure he has found many to concur.
"Again, in any case in which the benevolent intention can be perceived, we are at liberty to ask by what means and according to what laws this benevolent intention is manifested and made efficient. If this question is not to be asked, there is in the first place an end of physical science, so far as relates to every case in which a benevolent intention has been or can be recognised; and in the second, the argument à posteriori founded on the contrivance displayed in the works of creation is entirely taken away.
"This is, in effect, what Bacon says in the passage of the De Augmentis, in which he complains of the abuse of final causes. If, he affirms, the physical cause of any phenomenon can be assigned as well as the final, so far is this from derogating from our idea of the divine wisdom, that on the contrary it does but confirm and exalt it."[64]
Before passing from this subject the reader's attention may be drawn to two notes by the same eminent commentator. Bacon remarks (Nov. Org. I. 48) that Final Causes are "ex naturâ hominis" i.e., have relation to the nature of Man. "It is difficult," writes Mr. Ellis, "to assent to the assertion that the notion of the final cause, considered generally, is more ex naturâ hominis than that of the efficient. The subject is one of which it is difficult to speak accurately; but it may be said that wherever we think that we recognise a tendency towards a fulfilment or realisation of an idea, there the notion of the final cause comes in. It can only be from inadvertence that Professor Owen has set the doctrine of the final cause as it were in antithesis to that of the unity of type: by the former he means the doctrine that the suitability of an animal to its mode of life is the one thing aimed at or intended in its structure. It cannot be doubted that Aristotle would have recognised the preservation of the type as not less truly a final cause than the preservation of the species or than the well-being of the individual. The final cause connects itself with what in the language of modern German philosophy is expressed by the phrase 'the Idea in Nature.'"[65]
The epigrammatic comparison of a Final Cause to a consecrated Virgin[66] has been reviewed by numberless disciples as well as critics of our author. Mr. Ellis annotates the Latin text thus:—"Nihil parit, means simply, non parit opera, which though it would have been a more precise mode of expression would have destroyed the appositeness of the illustration. No one who fairly considers the context can, I think, have any doubts as to the limitation with which the sentence in question is to be taken. But it is often the misfortune of a pointed saying to be quoted apart from any context, and consequently to be misunderstood." And this seems to be a scholarly explanation.[67]
To complete the sketch of Baconian Metaphysic it appears only needful to add that his respect for the science of Quantity is sufficient to make him class under this higher philosophy—this near approach to the apex of his Pyramid—the whole circle of Mathematics.
Our long note will not have been written in vain if the reader bears its contents in mind when considering the abstract arguments advanced throughout this Essay. It is well to see what very great authorities have thought concerning the true use of Metaphysics;—it is well also to see how they ought to be applied in questions of physical science, and for the purpose of grounding a science of Natural Theology.
B.—ON THE PHRASE "DESIGN IMPLIES A DESIGNER."
"It has been contended," says Professor Baden Powell, "that in one sense it is mere tautology to say that Design implies a Designer." (Connexion of Natural and Divine Truth, p. 183.)
As a matter of fact there can be no doubt that verbal-sounding phrases, however useful in a system of Mnemonics, and much in favour as political war-cries, always tend to discredit the sober course of a philosophic argument. But Paley, though writing popularly, did not intend a mere ad captandum effect, as may be seen by a reference to his second chapter. He meant by Design and Contrivance to express in brief the conditions he had laid down as characteristic of the intentional adaptation of means to definitely purposed ends,—with which conditions he appears to have been fully satisfied.
In his 23rd and 24th chapters, where some hasty writer might have said "law implies a lawgiver," the Archdeacon prefers to state that "a law pre-supposes an agent," and proceeds to argue the statement on its merits. "Law," he says, "is only the mode according to which an agent proceeds: it implies a power, for it is the order according to which that power acts. Without this agent, without this power, which are both distinct from itself, the 'law' does nothing; is nothing." (Chapter 23.) He is well satisfied with this argument also, and repeats it (slightly varied in form) during the course of his next chapter.
In our comparison of Powell with Paley we were led to remark on the diverse meanings of the word Design, and the facility with which some authors have glided from one to another among its significations. If any thinker believes that the examples he adduces are distinctly instances of Foresight, Intention, and Will, he has the Designer full in mind before he employs the term Design. But if his instances fall short of thus much implicit force, the argument founded on them is a worthless verbality.[68]
Those who protest against the popular phrase, "Design proves a Designer," say it is a temptation to assume this point—(the one point at issue)—over which it skims with such secure ease. But to any person in earnest, few things are more irritating than a piece of cool, thorough-going assumption. It is like catching a cat and persistently calling it a hare. Many visitors at certain Roman Hotels are aware that when deprived of ears and tail more Italico and well roasted, the resemblance between these two animals may give rise to questions of disputed identity. Imagine, now, a party of cat-catchers, who not only assume the Identity, but persevere in calling their mongrel curs harehounds, and themselves huntsmen. No truer claim in reality do a multitude of Design-hunters possess to any higher title than the leguleii of Natural Theology. And the blame of their discredit must in a great degree be laid upon their words. It is easy to say, "A thrown-stone implies a thrower." But suppose the stone about which you and I are talking was thrown by the fiery force of a volcano? Must we hence infer the existence of a Cyclops or a Titan?
This mode of popular speech reached the climax of absurdity when it was gravely argued that "Evolution implies an Evolver." So it might appear to the peculiar mind of the speaker; but how about the mind of him who promulgated the evolution-hypothesis? Stones (as we may observe) fly from more than one cause, and there is more than one account to be given of the theory of Evolution.
Enough has been said to show that the phrase commented on in this note, prejudices the argument it is intended to assist. It wears the appearance of embodying a foregone conclusion; and gives trouble to the honest inquirer, who, in order to estimate reasonings at their true value, must translate them into accurate forms of speech.
We may aptly finish these remarks by a quotation from Whewell's Aphorisms on the Language of Science. (Aphorism I., Philosophy of the Inductive Sciences, II. 483.) "Words borrowed from common language, and converted by scientific writers into technical terms, have some advantages and some disadvantages. They possess this great convenience, that they are understood after a very short explanation, and retained in the memory without effort. On the other hand they lead to some inconvenience; for since they have a meaning in common language, a careless reader is prone to disregard the technical limitation of this meaning, and to attempt to collect their import in scientific books, in the same vague and conjectural manner in which he collects the purpose of words in common cases. Hence the language of science, when thus resembling common language, is liable to be employed with an absence of that scientific precision which alone gives it value. Popular writers and talkers, when they speak of force, momentum, action, and reaction, and the like, often afford examples of the inaccuracy thus arising from the scientific appropriation of common terms."
A similar line of reflection led Coleridge to remark (Biog. Lit., Chap. x.) that "the language of the market would be in the schools as pedantic, though it might not be reprobated by that name, as the language of the schools in the market. The mere man of the world, who insists that no other terms but such as occur in common conversation should be employed in a scientific disquisition, and with no greater precision, is as truly a pedant as the man of letters, who, either over-rating the acquirements of his auditors, or misled by his own familiarity with technical or scholastic terms, converses at the wine-table with his mind fixed on his museum or laboratory." And such pedantry is, we may add, not uncommonly just as perspicuous as the definition which, says old Glanvill, "was lately given of a Thought in a University Sermon—viz. A Repentine Prosiliency jumping into Being." (Defence of the Vanity of Dogmatizing, Actio Decima, p. 61, ed. 1.)
C.—HUME ON THE ANALOGIES OF ART AND NATURE.
[Referred to in footnote (e) in the preceding Chapter.]
The statement in the text is shaped as a not unfairly urged scientific objection of the kind which might be raised by some actual craftsman or producer. An objection identical in essence is thrown by Hume into a refined semi-metaphysical shape, and made to turn upon our general acquaintance with Human nature contrasted with our general ignorance of the Divine. It runs as follows:—
"The infinite difference of the subjects, replied he," (Hume's dramatic Epicurus,) "is a sufficient foundation for this difference in my conclusions. In works of human art and contrivance, it is allowable to advance from the effect to the cause, and returning back from the cause, to form new inferences concerning the effect, and examine the alterations which it has probably undergone, or may still undergo. But what is the foundation of this method of reasoning? Plainly this; that man is a being, whom we know by experience, whose motives and designs we are acquainted with, and whose projects and inclinations have a certain connection and coherence, according to the laws which nature has established for the government of such a creature. When, therefore, we find that any work has proceeded from the skill and industry of man; as we are otherwise acquainted with the nature of the animal, we can draw a hundred inferences concerning what may be expected from him; and these inferences will all be founded in experience and observation. But did we know man only from the single work or production which we examine, it were impossible for us to argue in this manner; because our knowledge of all the qualities, which we ascribe to him, being in that case derived from the production, it is impossible they could point to anything farther, or be the foundation of any new inference....
"The case is not the same with our reasonings from the works of nature. The Deity is known to us only by his productions, and is a single being in the universe, not comprehended under any species or genus, from whose experienced attributes or qualities, we can, by analogy, infer any attribute or quality in him." (Enquiry concerning Human Understanding. Section xi.)
Hume himself gives in his own character a reply partially veiled by the same half-metaphysical style which characterises the objection:—
"There occurs to me (continued I), with regard to your main topic, a difficulty which I shall just propose to you without insisting on it, lest it lead into reasonings of too nice and delicate a nature. In a word, I much doubt whether it be possible for a cause to be known only by its effect (as you have all along supposed), or to be of so singular and particular a nature, as to have no parallel and no similarity with any other cause or object that has ever fallen under our observation. It is only when two species of objects are found to be constantly conjoined, that we can infer the one from the other: and were an effect presented which was entirely singular, and could not be comprehended under any known species, I do not see, that we could form any conjecture or inference at all concerning its cause. If experience and observation and analogy be, indeed, the only guides which we can reasonably follow in inferences of this nature; both the effect and cause must bear a similarity and resemblance to other effects and causes which we know, and which we have found, in many instances, to be conjoined with each other. I leave it to your own reflection to pursue the consequences of this principle." (Ibid.)
The consequences which ought in fairness to be deduced may be stated thus. The effect we contemplate, (i.e. Nature,) is not singular but can be compared with other effects—those of Art. The comparison is made in respect of certain specific attributes or properties upon which the Design analogy turns, so that we may reason upwards to certain specific analogies of Causation. Art manifests the foreseeing attributes of the human artist, and from comparison of these we infer in the Creator like attributes,—what Hume elsewhere calls the natural attributes of the Deity. But this likeness is properly termed analogical, because of the vast difference in the magnitude of the effects from which we thus reason, and of the causes to which we reason. As our wisdom and power are proportionable to our earthly works, so are the Divine wisdom and power proportionable to the whole majestic Universe. There is, then, a comparison in species, but not in grandeur—the attributes are not similar, but analogical. As the Heavens are high above the Earth, so are His thoughts higher than our thoughts.
D.—THE PANTHEISTIC CONSEQUENCES CHARGED UPON PHYSICAL SPECULATIONS.
The following is the passage from Professor Baden Powell referred to in note (h) of the preceding chapter. Some short extracts were also made from it on a previous page.
"Nothing but the common confused and mistaken notions as to laws and causes, could give any colour to the assertion that ... physical speculations tend to substitute general physical laws in the place of the Deity; and that scientific statements of the conclusions of Natural Theology are nothing but ill-disguised Pantheism.
"The utter futility of such inferences is at once seen, when the smallest attention is given to the plain distinctions above laid down between 'moral' and 'physical' causation; and to the proper force of the conclusions from natural science establishing the former by means of the latter.
"This distinction obviously points to the very reverse of the assertion that physical action is identical with its moral cause; the essential difference and contrast between them is the very point which the whole argument upholds and enforces.
"Of all forms of philosophical mysticism, the idea of Pantheism seems to me one of the most extravagant. Ever-present mind is a direct inference from the universal order of nature, or rather only another mode of expressing it. But of the mode of existence of that mind we can infer nothing.
"To assert, then, that this universally manifested mind is co-existent, or even to be identified, with matter, is at best a mere gratuitous hypothesis, and as such wholly unphilosophical in itself, and leading to many preposterous consequences. But if further supposed to apply in any higher sense as to an object of worship, trust, love, obedience, or the like (as is implied in the term Pantheism), it appears to involve moral contradictions of the most startling kind.
"There are, however, many who, though rejecting Pantheism as untrue, do not conceive it absurd or contradictory. Much, however, will, in all such cases, depend on the precise sense in which it is maintained. With some it seems to have been upheld on a fanciful analogy with the conception of the human frame animated by an indwelling spirit; as if in a somewhat similar manner the supreme mind might animate nature. Without disputing this in a certain sense, the cases surely cannot be considered at all parallel: we do not infer the existence of the human mind, from the arrangement and adaptation of the bodily organs, nor is it the moral cause of their organisation.
"If Pantheism were asserted merely in the sense of a kind of vital or animating principle pervading the material world, I would admit that such an idea involves no absurdity, or contradiction, but still I should regard it as visionary and unphilosophical. I could but class it with the 'vital forces' which Kepler fancied necessary for keeping up the motions of the planets, with the 'plastic powers of nature,' 'her abhorrence of a vacuum,' and the like chimæras. But it is when men elevate such a supposed animating principle into a Deity, a being of supreme wisdom, power, beneficence, and goodness, yet residing in every atom of matter, and participating directly in every form and case of material action, that the contradiction arises." Spirit of the Inductive Philosophy, pp. 176-9.
E.—THE EXTENT AND DIVISIONS OF THE SCIENCE OF NATURAL THEOLOGY.
The following passages from Professor Powell's Essay "on the Spirit of the Inductive Philosophy" will go far to justify the praise and blame bestowed upon his mode of procedure in the text of the foregoing chapter. But we would recommend his own pages to the student's discriminative perusal.
In extract No. 1, Baden Powell shows with equal truth and force that universal Law must be contemplated as a manifestation of one supreme Intelligence presiding over the whole Universe. A philosopher who looks on Nature with this majestic breadth of view does not need for his own deepest convictions to follow Design through a multitude of smaller evidences.
If extract No. 2 could be admitted as a full account of the conditions and limitations of Natural Theology, our science would seem to result in an obscuration of the magnificently Supreme Power already accepted. So far as its letter goes, the Creator of the Universe might appear to be shut out from the world which He has made. We cannot (as has been said) consent to this narrow consideration of Natural Theology, nor yet of Powell's meaning.
Extract No. 3 acknowledges what all physical investigators ought to acknowledge,—that although their sciences contribute very much towards solving the problem of the Universe, and although their results readily harmonize with the solution maintained by the Theist—yet there rests over that vast problem a cloud which the physical sciences cannot completely dispel. This (as we shall see in Chapter V.) is indeed the confession of the greatest minds at present engaged upon the philosophy of Natural Science.
Extract No. 1.—"From the inductive philosophy we derive our belief in the harmony, order, and uniformity of natural causes, perpetually maintained in a universally connected chain of dependence. And hence it is, that we arrive at those sublime ideas of a presiding Intelligence of which law and uniformity, universal mechanism once for all adjusted, are the proper external manifestations.
"To the truly inductive philosopher, fate and chance, necessity and accident, are words without meaning. To him, the world is made up of recondite combinations of physical laws, and the existence and maintenance of those laws are the very indication of a Supreme Mind. But chance is irreconcilable with laws, fate with mind, regulated and fixed order with blind destiny, fortuitous accident, or arbitrary interruption.
"All rational natural theology advances by tracing the immediate mechanical steps and particular processes in detail, and the physical causes in which the influences of the Great Moral Cause or Supreme Mind are manifested. The greater the number and extent of such secondary steps and intermediate processes through which we can trace it, the greater the complexity and wider the ramifications of the chain of causes, the more powerful and convincing the instruction they convey as to the existence and operation of the Divine wisdom and power.
"Yet it is a common mode of illustration to speak of the chain of secondary causes reaching up to the First Cause. Or, again, fears are entertained of tracing secondary causes too far, so as to intrench on the supremacy of the First Cause. But this is an erroneous analogy: the maker or designer of a chain is no more at one end of it than at the other. The length of the chain in no way alters our conviction of its skilful structure, except to enhance it. If the number of links were truly infinite, so much the more infinite the skill of its framer.
"Mr. F. Newman observes,[69] I think most truly, that the common arguments from what are called 'secondary causes' to the 'First Cause' are unsatisfactory: and I would trace this to the confused sense in which those terms are commonly used, as already explained; and which, I think, might be entirely removed by attention to the distinctions above laid down. While, on the other hand, I fully acknowledge that those arguments, when correctly understood, lead only to a very limited conclusion; and one which falls infinitely short of those high moral and spiritual intuitions on which Mr. F. Newman grounds his religious system, yet in no way discredits or supersedes them." Essay, pp. 151-4.
Extract No. 2.—"In the present state of knowledge, law and order, physical causation and uniformity of action, are the elevated manifestations of Divinity, creation and providence. Interruptions of such order (if for a moment they could be admitted as such) could only produce a sort of temporary concealment of such manifestations, and involve the beautiful light shed over the natural world in a passing cloud. We do not indeed doubt that the sun exists behind the cloud, but we certainly do not see it; still less can we call the obscuration a special proof of its presence. The main point in the system of order and law is its absolute universality. Exceptions, if real, must pro tanto imply a deficiency in the chain of connexion, and might, to a sceptical disposition, offer a ground of doubt.
"But so overwhelming is the mass and body of proof, that no philosophic mind would allow such exceptions for a moment to weigh against it; they would be as dust in the balance. A supreme moral cause manifested through law, order, and physical causes, is the confession of science: conflicting operations, arbitrary interruptions, abrupt discontinuities, are the idols of ignorance, and, if they really prevailed, would so far be to the philosopher only the exponents of chaos and atheism; the obscuration (as far as they extend) of the sensible manifestation of the Supreme Intelligence." Ibid. 165, 6.
Extract No. 3.—"The whole tenor of the preceding argument is directed to show that the inference and assertion of a Supreme Moral Cause, distinct from and above nature, results immediately from the recognition of the eternal and universal maintenance of the order of physical causes, which are its essential external manifestations.
"Of the mode of action or operation by which the Supreme Moral Cause influences the universal order of physical causes, we confess our utter ignorance. But the evidence of such operation, where nature exists, can never be lost or interrupted. And in proportion as our more extended researches exhibit these indications more fully and more gloriously displayed, we cannot but believe that our contemplations are more nearly and truly approaching their Source." Ibid. 179.
The reader will not grudge the time he may have bestowed upon this note if it leads him to a distinct apprehension of the true breadth and compass of our science.
"Natural Theology," says Kant, "infers the attributes and the existence of an author of the world, from the constitution of, the order and unity observable in this world, in which two modes of Causality, together with their laws, must be accepted—that is to say, Nature and Freedom. Thus Natural Theology rises from this world to a supreme Intelligence, whether as to the principle of all natural or of all moral order and perfection. In the former case it is termed Physico-Theology, in the latter Ethical or Moral Theology." This last term he explains by adding, "Not theological ethics; for this latter science contains ethical laws, which presuppose the existence of a Supreme Governor of the world; while Moral Theology, on the contrary, is an evidence of the existence of a Supreme Being, an evidence founded upon ethical laws." Kant's Kritik der reinen Vernunft Transscendental Elementarlehre, s. 7.
It was from the fulness and depth of a personal conviction on this topic that the present writer ventured to assert in 1870 that "The conditions under which Natural Theology becomes scientifically possible, are found when it supplements Natural Science by a science of Right and Wrong," and also that "for the future Natural Theology ought to follow this path and no other—unless it wishes to commit suicide." These assertions were made in a University Sermon[70] on the question, "Under what Conditions is a Science of Natural Theology possible?" and they were censured as novel and unprecedented by critics who ought to have known better.
F.—ON TELEOLOGY.
One consequence of the principle on which this Essay has been framed is an endeavour to place before the reader's eye different modes of reasoning in the language of their several authors. The method of looking at any subject-matter in a diversity of lights naturally leads to copiousness of quotation. There can, it is evident, be no varieties of thought so undeniably distinct as those which are the actual products of diverse minds.
The maxim which has governed the following selection is what Bacon would call a marshalling Idea. They posit one central thought and throw light upon it from a circle of separate reflectors.
Let it be observed that such a collection of opinions implies no appeal to authority in the narrow sense of the word. There is indeed a manifest distinction between authority and authorities—and our present appeal is to the latter. No man's ipse dixit can dogmatically settle questions which belong to an inquirer's responsible self; but it is surely the wisdom of every one who acknowledges the awful sense of accountability attendant on the determination of questions affecting his central beliefs, to weigh the reasonings of others who have felt the same deep impression of their paramount importance. If any one is reluctant so to do from an idea that by doing thus much he pays a wrongful deference to prejudices, he has in truth assumed the whole issue which he is bound to examine. How otherwise can he certainly allege that the prejudice is not inherent within himself?
Reluctance of this kind would on the present occasion be thoroughly misplaced. Authorities as here quoted are neither more nor less than the opinions of experts who have a title to be heard each in his own proper department. Throughout the practical conduct of life we all experience the benefit of laying aside our private spectacles from time to time and of looking through the glasses of other men. And in questions such as the one now before us, is it possible to do better than try whether we can see for ourselves what has been pronounced discernible by men who contemplated this world of ours with more than ordinary powers of vision?
The present writer has a personal interest in bringing together the reflections of many who have reached the same resting-place along various lines of approach, and who have expressed their conclusions with some diversity of language. He has ventured himself on viewing the evidences of Natural Theology from a position by no means identical with that most commonly occupied by Natural Theologians. The student, therefore, who takes a wide survey of the field will be the critic best prepared to examine the latter part of this Essay.
The first authority quoted among our ample citations is Hume, whose appearance as a witness for Natural Theology may surprise some readers. As, however, is remarked by an eminent writer in the Quarterly, Hume's hard common sense "enabled him when he liked, to control the excesses of a speculative imagination and subject it to practical reason, as he understood reason's verdict." He even went so far as to say that "The whole frame of Nature bespeaks an Intelligent Author; and no rational inquirer can, after serious reflection, suspend his belief a moment with regard to the primary principles of genuine Theism and Religion." (Natural History of Religion, Introduction.) Indeed, according to Cucheval Clarigny,[71] Hume was an "almost Christian" at certain periods of his life. The repellant forces that kept him back, are "not far to seek."
The following passages refer to the illative analogy which forms the proper shape of the argument from Design.
"That the works of Nature bear a great analogy to the productions of art, is evident; and according to all the rules of good reasoning, we ought to infer, if we argue at all concerning them, that their causes have a proportional analogy. But as there are also considerable differences, we have reason to suppose a proportional difference in the causes; and in particular ought to attribute a much higher degree of power and energy to the supreme cause than any we have ever observed in mankind. Here then the existence of a DEITY is plainly ascertained by reason: and if we make it a question whether, on account of these analogies, we can properly call him a mind or intelligence, notwithstanding the vast difference which may reasonably be supposed between him and human minds; what is this but a mere verbal controversy? No man can deny the analogies between the effects: To restrain ourselves from inquiring concerning the causes, is scarcely possible: From this inquiry, the legitimate conclusion is, that the causes have also an analogy: And if we are not contented with calling the first and supreme cause a GOD or DEITY, but desire to vary the expression; what can we call him but MIND or THOUGHT, to which he is justly supposed to bear a considerable resemblance?" Dialogues concerning Natural Religion, Part xii. in Essays, Vol. II. p. 526.[72]
"If the whole of Natural Theology, as some people seem to maintain, resolves itself into one simple, though somewhat ambiguous, at least undefined proposition, That the cause or causes of order in the universe probably bear some remote analogy to human intelligence. If this proposition be not capable of extension, variation, or more particular explication; if it affords no inference that affects human life, or can be the source of any action or forbearance; and if the analogy, imperfect as it is, can be carried no farther than to the human intelligence, and cannot be transferred, with any appearance of probability, to the other qualities of the mind: If this really be the case, what can the most inquisitive, contemplative, and religious man do more than give a plain, philosophical assent to the proposition, as often as it occurs; and believe that the arguments on which it is established, exceed the objections which lie against it?" Ibid. p. 538.
The following is the opinion of Cleanthes, upon whom Hume confers the palm in the dialogue;—"Take care, Philo, replied Cleanthes; take care; push not matters too far: allow not your zeal against false religion to undermine your veneration for the true. Forfeit not this principle, the chief, the only great comfort in life; and our principal support amidst all the attacks of adverse fortune. The most agreeable reflection, which it is possible for human imagination to suggest, is that of genuine Theism, which represents us as the workmanship of a Being perfectly good, wise, and powerful; who created us for happiness; and who, having implanted in us immeasurable desires of good, will prolong our existence to all eternity, and will transfer us into an infinite variety of scenes, in order to satisfy those desires, and render our felicity complete and durable. Next to such a Being himself (if the comparison be allowed), the happiest lot which we can imagine, is that of being under his guardianship and protection." Ibid. p.535.[73]
The next three extracts give Hume's opinion on the prevailing principle disclosed by the analogy—design, purpose, and the recognition of final causes:—
"Though the stupidity of men, barbarous and uninstructed, be so great, that they may not see a sovereign author in the more obvious works of nature, to which they are so much familiarized; yet it scarce seems possible, that any one of good understanding should reject that idea, when once it is suggested to him. A purpose, an intention, a design is evident in everything; and when our comprehension is so far enlarged as to contemplate the first rise of this visible system, we must adopt, with the strongest conviction, the idea of some intelligent cause or author. The uniform maxims, too, which prevail throughout the whole frame of the universe, naturally, if not necessarily, lead us to conceive this intelligence as single and undivided, where the prejudices of education oppose not so reasonable a theory. Even the contrarieties of nature, by discovering themselves everywhere, become proofs of some consistent plan, and establish one single purpose or intention, however inexplicable and incomprehensible." Natural History of Religion XV.—General Corollary, in Essays II. pp. 422, 3.
"In many views of the universe, and of its parts, particularly the latter, the beauty and fitness of final causes strike us with such irresistible force that all objections appear (what I believe they really are) mere cavils and sophisms; nor can we then imagine how it was ever possible for us to repose any weight on them." Dialogues concerning Natural Religion, Part X. in Essays, II. 509.
"The order and arrangement of nature, the curious adjustment of final causes, the plain use and intention of every part and organ; all these bespeak in the clearest language an intelligent cause or author. The heavens and the earth join in the same testimony. The whole chorus of nature raises one hymn to the praises of its Creator.... I have found a Deity; and here I stop my enquiry. Let those go farther who are wiser or more enterprising." Ibid. Part IV. p. 467.
Hume is conspicuous amongst reasoners on Natural Theology for having distinctly comprehended Human Nature along with Nature in the cycle of its evidences. "This sentence at least," he writes, "Reason will venture to pronounce, That a mental world, or universe of ideas, requires a cause as much as does a material world, or universe of objects; and, if similar in its arrangement, must require a similar cause. For what is there in this subject which should occasion a different conclusion or inference? In an abstract view, they are entirely alike; and no difficulty attends the one supposition which is not common to both of them." Ibid. Part IV. p. 464.
This statement brings us to the impediments which withheld Hume from forming a sublime idea of the Divine Being, such an idea as kindles the enthusiasm of devout men, and inspires even timidly sensitive souls with deathless confidence in the final triumph of a self-sacrificing virtue destined to survive the grave. These causes were the opinions he maintained respecting human nature. We may lay it down as a universal rule that every one who sees the animal, but not the heaven-aspiring moral element in his own nature, and in our common nature, will fail to represent to himself the lineaments or reflection of the Divine attributes. An acknowledged kinship with brutal passions, the lowering of society and wedlock to animal gregariousness, of moral principle and the rule of Right and Wrong to a perception of Utility, are fatal hindrances in the search after God;—a search arduous to the best of us, since deep as the far translucent heavens, are the majestic thoughts of Him after Whom we strive to feel. Now Hume failed to discern the Godlike in Man. "Human life," he remarks in his Sceptic, "is more governed by fortune than by reason; is to be regarded more as a dull pastime than as a serious occupation; and is more influenced by particular humour than by general principles." Morality is no fixed star in Hume's firmament. To omit the laxity of many moral maxims he lays down, the very nature and foundations of morality were imperilled by his analytics.[74]
"He has," writes Mackintosh, "altogether omitted the circumstance on which depends the difference of our sentiments regarding moral and intellectual qualities. We admire intellectual excellence, but we bestow no moral approbation on it." And again—"He entirely overlooks that consciousness of the rightful supremacy of the moral faculty over every other principle of human action, without an explanation of which, ethical theory is wanting in one of its vital organs." Ethical Philosophy, pp. 182, 4. "If," says Hume in the Sceptic, "we can depend upon any principle which we learn from philosophy, this, I think, may be considered as certain and undoubted, that there is nothing in itself valuable or despicable, desirable or hateful, beautiful or deformed; but that these attributes arise from the particular constitution and fabric of human sentiment and affection." And half a dozen pages afterwards—"Good and ill, both natural and moral, are entirely relative to human sentiment and affection." So too, "The necessity of justice to the support of society is," he tells us, "the Sole foundation of that virtue;" usefulness, he explains, "is the Sole source of the moral approbation paid to fidelity, justice, veracity, integrity, and those other estimable and useful qualities and principles." It is also "the source of a considerable part of the merit ascribed to humanity, benevolence, friendship, public spirit, and other social virtues of that stamp." Principles of Morals, Sect. III. sub fin. With these sentiments it is not surprising that while he insists on the analogy between human workmanship and the natural universe he cannot argue analogically from moral Truth to the Divine attributes—and even goes so far as to decide that the first causes of the Universe "have neither goodness nor malice."
The student of Natural Theology cannot direct his attention too soon or too steadily to the vast share possessed by our moral sentiments in our apprehension of the Divine nature. It is from our sense of Responsibility attached to each act of Will and Choice that we deduce the idea of causation. It is from our intuitions of immutable moral truth and the irreconcilable antithesis between Right and Wrong that we behold the Martyr as one who has not lived in vain, but lives truly and for ever; and are sure that there exists a God who has regard to the righteous, the oppressed, the fatherless, and the widow. Clear moral insight appears in Socrates, who chose to die rather than offend against the eternal laws. But ought the man to be styled moral or immoral who should balance together two comparative utilities,—that of preserving his father's life and that of acquiring by a judicious neglect, without risk to himself, a property which he resolved to expend usefully? Of one thing we may be sure, God could not be in all his thoughts whilst making such a calculation.
It is thus that a pure Morality and an elevated conception of the Divine Being act and react upon each other. And in this way our speculative and practical Reason become interlaced—the former giving to the logical understanding an account of those ideas which form the essential sublimity and moving influence of our practical beliefs—the springs of our daily and hourly behaviour. There is no more certain characteristic of a mind so ordered than its ability to deal with a moral doubt which casuists might long debate, to solve the enigma within the compass of a moment's thought, and to defend the solution by fair and honest argument. As regards our present question it makes no difference by what means such a condition of mind may have been brought about, but it is plain that a sense of accountability has much to do with this condition. And the connexion between Responsibility and our belief in a life immortal, and in a just and veracious God, will form a subject for future consideration.
Meantime, the reader must take Hume's acceptance of the doctrine of final causes and the Design-analogy, for what it is worth. No candid person ought to condemn Hume as he has often been condemned without remembering the allowance to be made for his excessive vanity,[75] his extreme love of paradoxical speculation, and the dramatic irony which runs throughout his writings. These are in fact some of the qualities which make him an unfit schoolmaster for the young, and a shrewd exercise for elder men. One useful lesson we gather just now is learned from the fact that he places a wide gulf between the natural and moral attributes of the Deity, and draws a veil over the latter, because the alleged poverty of our moral ideas precludes any analogy to reason upon, however remote that analogy may appear. Hence Hume's God of Nature becomes a shadow like Wordsworth's Laodamia, scarce fit for the Elysian bowers; He is no longer felt by us to be the God of Human Nature.
We cannot here omit to observe that Hume had no thought of worshipping the Order of the World, or of erecting a temple to immutable Laws, blind Force, or any other blank impersonal Necessity. The limit of his inquiry was what to human reason might appear the easiest and most probable interpretation of nature.[76] This question he asked and answered. Whether modern science has added important data on which to found a more conclusive reply is a further inquiry which we shall have to consider, but meantime it appears certain that if the most sceptical theory of the most sceptical scientist were held true, there would still remain the same necessity for asking Hume's question. For neither our life, nor the world we live in, nor the wide universe, have any real cause or aim scientifically assigned them. We should still have to inquire by what agency and to what purpose we and the All exist? That we really are is a fact for you, O reader, and for me; and we cannot but want to discover whether we shall yet be, when this brief yet tedious life is done; and if so, whether our present acts and choosings must influence our Hereafter? Science has said nothing to annihilate our interest concerning these topics, nor yet to finally decide them.
For the truth of what is contained in this last paragraph, we may cite as witness amongst scientific men, the distinguished President of the British Association for 1872. Dr. Carpenter spoke at Brighton in these words:—"There is a great deal of what I cannot but regard as fallacious and misleading Philosophy—'oppositions of Science falsely so called'—abroad in the world at the present time. And I hope to satisfy you, that those who set up their own conceptions of the Orderly Sequence which they discern in the Phenomena of Nature, as fixed and determinate Laws, by which those phenomena not only are within all Human experience, but always have been, and always must be, invariably governed, are really guilty of the Intellectual arrogance they condemn in the Systems of the Ancients, and place themselves in diametrical antagonism to those real Philosophers, by whose comprehensive grasp and penetrating insight that Order has been so far disclosed." And again towards the close of his Address:—"With the growth of the Scientific Study of Nature, the conception of its Harmony and Unity gained ever-increasing strength. And so among the most enlightened of the Greek and Roman Philosophers, we find a distinct recognition of the idea of the Unity of the Directing Mind from which the Order of Nature proceeds; for they obviously believed that, as our modern Poet has expressed it—
"All are but parts of one stupendous whole, Whose body Nature is, and God the Soul."
The Science of Modern times, however, has taken a more special direction. Fixing its attention exclusively on the Order of Nature, it has separated itself wholly from Theology, whose function it is to seek after its Cause. In this, Science is fully justified, alike by the entire independence of its objects, and by the historical fact that it has been continually hampered and impeded in its search for the Truth as it is in Nature, by the restraints which Theologians have attempted to impose upon its inquiries. But when Science, passing beyond its own limits, assumes to take the place of Theology, and sets up its own conception of the Order of Nature as a sufficient account of its Cause, it is invading a province of Thought to which it has no claim, and not unreasonably provokes the hostility of those who ought to be its best friends."
Our next extract is from Sir Benjamin Brodie, and it, too, considers the absolute permanence of the laws of Nature in relation to Design:—
Crites. "There have been sceptics who have believed that the laws of nature were, if I may use the expression, self-existent; and that what we now see around us is but a continuation of a system that has been going on from all eternity—thus dispensing with the notion of a great creative Intelligence altogether."
Eubulus. "Under any view of the subject, it seems to me that it would be very difficult, if not impossible, for any of us practically to separate the marks of design, and of the adaptation of means to ends, which the universe affords, but which are more especially conspicuous in the animal and vegetable kingdoms, from the notion of an intelligent Cause. There is not one of the sceptics to whom you have alluded, who would not, if he were asked the question, "What is the use of the eye?" answer, "that it is intended to be the organ of vision, as the ear is intended to be that of hearing, and as the nostrils are constructed for the purpose of smell." But what I said just now requires some further explanation. When I stated that at the present time there is no evidence of any deviation from certain established laws of nature—that if we could thoroughly know and thoroughly appreciate what those laws really are, we should be able to account for all the phenomena around us—I was far from intending to say that there has never been a period when other laws than those which are now in force were in operation, or that the time may not arrive when the present order of things will be in a similar manner superseded. Looking at the structure of the globe, and the changes in its surface which have been disclosed to the observation of geologists, we recognize the probability that there was a time when this planet of ours was no better than a huge aërolite, and in a state quite incompatible with animal or even vegetable life. The existence of living beings, then, must have had a beginning; yet we have no evidence of any law now in force which will account for this marvellous creation."[77] Psychological Inquiries, Part II., pp. 193-4-5.
The great surgeon next discusses the question of "Equivocal Generation" now known by the terms Archebiosis and Abiogenesis. His opinion, together with some later information on the topic, will be found in our additional notes to Chapter III.
When writing his first series of "Inquiries" Sir Benjamin recorded his judgment regarding our knowledge and conception of the Divine Existence and in terms which show how closely he connected the general subject of Mind and its Essence with his idea of the Creator.
Eubulus. "When I contemplate the evidence of intention and design which present themselves everywhere around us, but which, to our limited comprehensions, is more especially manifested in the vegetable and animal creations, I cannot avoid attributing the construction and order of the universe to an intelligent being, whose power and knowledge are such that it is impossible for me to form any adequate conception of them, any more than I can avoid referring the motions of the planets and stars to the same law of gravitation as that which directs the motions of our own globe. But no one, I apprehend, will maintain that the mind of the Deity depends on a certain construction of brain and nerves; and Dr. Priestley, the most philosophical of the advocates of the system of materialism, ventures no further than to say that we have no knowledge on the subject. But, to use the words of Sir Isaac Newton, 'This powerful ever-living agent being in all places, is more able to move the bodies within his boundless uniform sensorium, and thereby to form and reform the parts of the universe, than we are, by our will, to move the parts of our own bodies.' The remainder of the passage from which I have made this quotation, is not without interest, as indicating the view which Newton took of the matter in question:—'And yet we are not to consider the world as the body of God, or the several parts thereof as the parts of God. He is an uniform being, void of organs, members, or parts, and they are his creatures, subordinate to him, and subservient to him, and he is no more the soul of them than the soul of man is the soul of the species carried through the organs of sense into the place of its sensation, where it perceives them by its immediate presence, without the intervention of any third thing. The organs of sense are not for enabling the soul to perceive the species of things in its sensorium, but only for conveying them thither; and God has no need of any such organs, he being everywhere present to the things themselves.'"
Ergates. "I entirely agree with you in the opinion that we must admit the existence of the Deity as a fact as well established as that of the law of gravitation, and that in doing so we must further admit that mind may and does exist, independently of bodily organization. Be it also remembered that mind, in its humblest form, is still mind, and that, immeasurable as the distance between them may be, it must nevertheless be regarded as being of the same essence with that of the Deity himself. For my own part I find no difficulty in conceiving the existence of mind independently of corporeal organs." (p. 39, seq.)
Those who have read Professor Huxley's article on the Metaphysics of Sensation,[78] will feel much interested in the passages selected from Newton by Sir Benjamin. It seems almost a pity that the accomplished Professor did not cite any of Dr. Clarke's explanatory remarks addressed to Leibniz respecting Sir Isaac Newton's expressions. The similitude above quoted, Clarke explains thus:—"Mr. Newton considère le cerveau et les organes des sens, comme le moyen par lequel ces images sont Formées et non comme le moyen par lequel l'âme voit ou aperçoit ces images, lorsqu'elles sont ainsi formées. Et dans l'Univers, il ne considère pas les choses, comme si elles étaient des images formées par un certain moyen ou par des organes; mais comme des choses réelles, que Dieu lui-même a formées, et qu'il voit dans tous les lieux où elles sont, sans l'intervention d'aucun moyen. C'est tout ce que Mr. Newton a voulu dire par la comparaison, dont il s'est servi, lorsqu'il suppose que l'Espace infini est, pour ainsi dire, le Sensorium de l'Etre qui est présent partout."
A simpler way of putting the case may be to point out that the comparison of a Sensorium is intended, like other similitudes we have reviewed, to hold in only one point. Newton uses it apparently to localize the idea of immediate intuition. In this way all Space, the whole Universe, with its moving contents, which transcend the farthest flight of human imagination are,—not distantly,—but immediately present to the mind of God.
Passing from these thoughts which may illustrate, but cannot explain, a subject dark with excess of splendour, we now enter on a series of extracts so chosen as to furnish an ample examination of the several ideas involved in the philosophy of Design, and an estimate of their several values. It is evidently important that the reader should possess some means of forming clear conceptions respecting the nature of these ideas, and the collection now appended, aims at saving him the trouble of a tedious search. Any points which may have appeared perplexing or obscure in the preceding Chapter will, it is hoped, be made sufficiently plain by a perusal of the following pages.
The first in this class of passages is taken from Whewell's Philosophy of the Inductive Sciences. No one probably was ever much better fitted by training and attainment than that eminent writer for the investigation he here undertakes. We must, however, caution the reader against supposing that Dr. Whewell means to introduce him into a world of Platonism. The ideas he speaks of may be illustrated in this way. Suppose a person constructs a right line according to Euclid's definition and draws it evenly between its extreme points, his mind has immediately an impression of rightness or straightness, which he attaches to all lines actually so constructed or conceived of as theoretically possible. This idea of straightness is absolute and universal. So, again, looking at two such lines, he knows that they, cannot, in the nature of things inclose a space, and this idea likewise is universal and absolutely true.
With the nature of these ideas as a psychological question, the reader need not concern himself for our present purpose. It is sufficient to observe they are brought into activity by a practical occasion. Whether they were wholly or partially pre-existent—or whether they represent a state of our Reason evoked by the occasion—are points which make no difference to their exact strength of validity. We find as a matter of fact in going through life that this particular class of ideas is so very true that it enables us to gauge the material universe. Yet notably enough, Hume in his Treatise (I. 247, seq.) reduces applied mathematics to a species of probability.
Other ideas having various degrees of validity and practical necessity are involved in the diverse processes which pertain to the inductive sciences. Dr. Whewell's work was written for the purpose of elucidating them, which he does at great length. To some such ideas, principles, and beliefs we shall advert by and bye.
All that seems now necessary is to remark that the distinguished author's general division (Book IX.) where our extract will be found, is concerned with the Philosophy of Biology, and that the paragraphs quoted are sections of its chapter VI., "On the Idea of Final Causes."
"1. By an examination of those notions which enter into all our reasonings and judgments on living things, it appears that we conceive animal life as a vortex or cycle of moving matter in which the form of the vortex determines the motions, and these motions again support the form of the vortex: the stationary parts circulate the fluids, and the fluids nourish the permanent parts. Each portion ministers to the others, each depends upon the other. The parts make up the whole, but the existence of the whole is essential to the preservation of the parts. But parts existing under such conditions are organs, and the whole is organized. This is the fundamental conception of organization. 'Organized beings,' says the physiologist,[79] 'are composed of a number of essential and mutually dependent parts.'—'An organized product of nature,' says the great metaphysician,[80] 'is that in which all the parts are mutually ends and means.'
"2. It will be observed that we do not content ourselves with saying that in such a whole, all the parts are mutually dependent. This might be true even of a mechanical structure; it would be easy to imagine a framework in which each part should be necessary to the support of each of the others; for example, an arch of several stones. But in such a structure the parts have no properties which they derive from the whole. They are beams or stones when separate; they are no more when joined. But the same is not the case in an organized whole. The limb of an animal separated from the body, loses the properties of a limb and soon ceases to retain even its form.
"3. Nor do we content ourselves with saying that the parts are mutually causes and effects. This is the case in machinery. In a clock, the pendulum by means of the escapement causes the descent of the weight, the weight by the same escapement keeps up the motion of the pendulum. But things of this kind may happen by accident. Stones slide from a rock down the side of a hill and cause it to be smooth; the smoothness of the slope causes stones still to slide. Yet no one would call such a slide an organized system. The system is organized, when the effects which take place among the parts are essential to our conception of the whole; when the whole would not be a whole, nor the parts, parts, except these effects were produced; when the effects not only happen in fact, but are included in the idea of the object; when they are not only seen, but foreseen; not only expected, but intended: in short when, instead of being causes and effects, they are ends and means, as they are termed in the above definition.
"Thus we necessarily include, in our idea of Organization, the notion of an End, a Purpose, a Design; or, to use another phrase which has been peculiarly appropriated in this case, a Final Cause. This idea of a Final Cause is an essential condition in order to the pursuing our researches respecting organized bodies....
"5. This has already been confirmed by reference to fact; in the History of Physiology, I have shown that those who studied the structure of animals were irresistibly led to the conviction that the parts of this structure have each its end or purpose;—that each member and organ not merely produces a certain effect or answers a certain use, but is so framed as to impress us with the persuasion that it was constructed for that use;—that it was intended to produce the effect. It was there seen that this persuasion was repeatedly expressed in the most emphatic manner by Galen;—that it directed the researches and led to the discoveries of Harvey;—that it has always been dwelt upon as a favourite contemplation, and followed as a certain guide, by the best anatomists;—and that it is inculcated by the physiologists of the profoundest views and most extensive knowledge of our own time. All these persons have deemed it a most certain and important principle of physiology, that in every organized structure, plant or animal, each intelligible part has its allotted office:—each organ is designed for its appropriate function:—that nature, in these cases, produces nothing in vain: that, in short, each portion of the whole arrangement has its final cause; an end to which it is adapted, and in this end, the reason that it is where and what it is.
"6. This Notion of Design in organized bodies must, I say, be supplied by the student of organization out of his own mind: a truth which will become clearer if we attend to the most conspicuous and acknowledged instances of design. The structure of the eye, in which the parts are curiously adjusted so as to produce a distinct image on the retina, as in an optical instrument;—the trochlear muscle of the eye, in which the tendon passes round a support and turns back, like a rope round a pulley;—the prospective contrivances for the preservation of animals, provided long before they are wanted, as the milk of the mother, the teeth of the child, the eyes and the lungs of the fœtus:—these arrangements, and innumerable others, call up in us a persuasion that Design has entered into the plan of animal form and progress. And if we bring in our minds this conception of Design, nothing can more fully square with and fit it, than such instances as these. But if we did not already possess the Idea of Design;—if we had not had our notion of mechanical contrivance awakened by inspection of optical instruments, or pulleys, or in some other way;—if we had never been conscious ourselves of providing for the future;—if this were the case, we could not recognize contrivance and prospectiveness in such instances as we have referred to. The facts are, indeed, admirably in accordance with these conceptions, when the two are brought together: but the facts and the conceptions come together from different quarters—from without and from within.
"7. We may further illustrate this point by referring to the relations of travellers who tell us that when consummate examples of human mechanical contrivance have been set before savages, they have appeared incapable of apprehending them as proofs of design. This shows that in such cases the Idea of Design had not been developed in the minds of the people who were thus unintelligent: but it no more proves that such an idea does not naturally and necessarily arise, in the progress of men's minds, than the confused manner in which the same savages apprehend the relations of space, or number, or cause, proves that these ideas do not naturally belong to their intellects. All men have these ideas; and it is because they cannot help referring their sensations to such ideas, that they apprehend the world as existing in time and space, and as a series of causes and effects. It would be very erroneous to say that the belief of such truths is obtained by logical reasoning from facts. And in like manner we cannot logically deduce design from the contemplation of organic structures; although it is impossible for us, when the facts are clearly before us, not to find a reference to design operating in our minds."
It seems well to add here the practical comments made by Müller and Kant on the passages quoted from them by Dr. Whewell in his first Paragraph. Professor Müller writes thus (Baly's translation, Vol. I., p. 19):—"The manner in which their elements are combined, is not the only difference between organic and inorganic bodies; there is in living organic matter a principle constantly in action, the operations of which are in accordance with a rational plan, so that the individual parts which it creates in the body, are adapted to the design of the whole; and this it is which distinguishes organism. Kant says, 'The cause of the particular mode of existence of each part of a living body resides in the whole, while in dead masses each part contains this cause within itself.' This explains why a mere part separated from an organized whole generally does not continue to live; why, in fact, an organized body appears to be one and indivisible."
Before proceeding to the great Metaphysician, it may be interesting to place in connection with this extract from Müller, certain views of other distinguished physiologists. Sir C. Bell states his own opinions on the connection of Life and Organization in this manner (Appendix to Paley's Natural Theology by Sir Charles Bell, commencing with pp. 211-13):—"Archdeacon Paley has, in these two introductory chapters, given us the advantage of simple, but forcible language, with extreme ingenuity, in illustration. But for his example, we should have felt some hesitation in making so close a comparison between design, as exhibited by the Creator in the animal structure, and the mere mechanism, the operose and imperfect contrivances of human art.
"Certainly, there may be a comparison; for a superficial and rapid survey of the animal body may convey the notion of an apparatus of levers, pulleys, and ropes—which maybe compared with the spring, barrel, and fusee, the wheels and pinions, of a watch. But if we study the texture of animal bodies more curiously, and especially if we compare animals with each other—for example, the simple structure of the lower creatures with the complicated structure of those higher in the scale of existence—we shall see, that in the lowest links of the chain animals are so simple, that we should almost call them homogeneous; and yet in these we find life, sensibility, and motion. It is in the animals higher in the scale that we discover parts having distinct endowments, and exhibiting complex mechanical relations. The mechanical contrivances which are so obvious in man, for instance, are the provisions for the agency and dominion of an intellectual power over the materials around him.
"We mark this early, because there are authors who, looking upon this complexity of mechanism, confound it with the presence of life itself, and think it a necessary adjunct—nay, even that life proceeds from it: whereas the mechanism which we have to examine in the animal body is formed with reference to the necessity of acting upon or receiving impressions from, things external to the body—a necessary condition of our state of existence in a material world.
"Many have expressed their opinion very boldly on the necessary relation between organization and life, who have never extended their views to the system of nature. To place man, an intelligent and active being, in this world of matter, he must have properties bearing relation to that matter. The existence of matter implies an agency of certain forces;—the particles of bodies must suffer attraction and repulsion; and the bodies formed by the balance of these influences upon their atoms or particles must have weight or gravity, and possess mechanical properties. So must the living body, independently of its peculiar endowments, have similar composition and qualities, and have certain relations to the solids, fluids, gases, heat, light, electricity, or galvanism, which are around it. "Without these, the intellectual principle could receive no impulse—could have no agency and no relation to the material world. The whole body must gravitate or have weight; without which it could neither stand securely, nor exert its powers on the bodies around it. But for this, muscular power itself, and all the appliances which are related to that power, would be useless. When, therefore, it is affirmed that organization or construction is necessary to life, we may at least pause in giving assent, under the certainty that we see another and a different reason for the construction of the body. Thus we perceive, that as the body must have weight to have power, so must it have mechanical contrivance, or arrangement of its parts. As it must have weight, so must it be sustained by a skeleton; and when we examine the bones, which give the body height and shape, we find each column (for in that sense a bone may be first taken) adjusted with the finest attention to the perpendicular weight that it has to bear, as well as to the lateral thrusts to which it is subject in the motions of the body."... Again p. 405, seq.