Note 28 — LETTER IN REPLY TO HAZLITT CONCERNING THE MALTHUSIAN DOCTRINE OF POPULATION.
Reading edition
What other interpretation? An interpretation which makes Mr. Hazlitt's argument coincide with one frequently urged against Mr. Malthus—viz. 'that in fact he himself relies practically upon moral restraint as one great check to Population, though denying that any great revolution in the moral nature of man is practicable.' But so long as Mr. Malthus means, by a great revolution, a revolution in the sense which he imputes to Mr. Godwin—to Condorcet, &c. viz. a revolution amounting to absolute perfection, so long there is no logical error in all this: Mr. Malthus may consistently rely upon moral restraint for getting rid, suppose, of ninety cases out of every hundred which at present tend to produce an excessive population, and yet maintain that even this tenth of the former excess would be sufficient, at a certain stage of population, to reproduce famines, &c., i. e. to reproduce as much misery and vice as had been got rid of. Here there is an absolute increase of moral restraint, but still insufficient for the purpose of preventing misery, &c. For, as soon as the maximum of population is attained, even one single birth in excess (i. e. which does more than replace the existing numbers)—à fortiori, then, one-tenth of the present excess (though implying that the other nine-tenths had been got rid of by moral restraint) would yet be sufficient to prevent the attainment of a state of perfection. And, if Mr. Malthus had so shaped his argument, whether wrong or right—he would not have offended in point of logic: his logical error lies in supposing a state of perfection already existing and yet as brought to nothing by this excess of births: whereas it is clear that such an excess may operate to prevent, but cannot operate to destroy a state of perfection; because in such a state no excess could ever arise; for, though an excess may co-exist with a vast increase of moral restraint, it cannot co-exist with entire and perfect moral restraint; and nothing less than that is involved in the term 'perfection.' A perfect state, which allows the possibility of the excess here spoken of, is already an imperfect state. Now, if Mr. Hazlitt says that this is exactly what he means, I answer that I believe it is; because I can in no other way explain his sixth sentence—from the words 'but it is shifting the question' to the end of that sentence. Yet again the seventh sentence (the last) is so expressed as to be unintelligible to me. And all that precedes the sixth sentence, though very intelligible, yet seems the precise objection which I have stated above, and which I think untenable. Nay, it is still less tenable in Mr. Hazlitt's way of putting it than as usually put: for to represent Mr. Malthus as saying that, 'if reason should ever get the mastery over all our actions, we shall then be governed entirely by our physical appetites' (which are Mr. Hazlitt's words), would be objected to even by an opponent of Mr. Malthus: why 'entirely?' why more than we are at present? The utmost amount of the objection is this:—That, relying so much upon moral restraint practically, Mr. Malthus was bound to have allowed it more weight speculatively, but it is unreasonable to say that in his ideal case of perfection Mr. Malthus has allowed no weight at all to moral restraint: even he, who supposes an increased force to be inconsistent with Mr. Malthus's theory, has no reason to insist upon his meaning a diminished force.