Note (return) — Chapter VII

It is barely conceivable that Hamilton might imagine himself possessed of this singular power of "performing an act of negative thought"--that is, of thinking and not thinking at once, or of "thinking something" that "becomes nothing;" we are not conscious of any such power. To think without an object of thought, or to think of something without any qualities, or to think "something" which in the act of thought melts away into "nothing," is an absurdity and a contradiction. We can not think about nothing. All thought must have an object, and every object must have some predicate. Even space has some predicates--as receptivity, unity, and infinity. Thought can only be realized by thinking something existing, and existing in a determinate manner; and when we cease to think something having predicates, we cease to think at all. This is emphatically asserted by Hamilton himself. 335 "Negative thinking" is, therefore, a meaningless phrase, a contradiction in terms; it is no thought at all. We are cautioned, however, against regarding "the negation of thought" as "a negation of all mental ability." It is, we are told, "an attempt to think, and a failure in the attempt." An attempt to think about what? Surely it must be about some object, and an object which is known by some sign, else there can be no thought. Let any one make the attempt to think without something to think about, and he will find that both the process and the result are blank nothingness. All thought, therefore, as Calderwood has amply shown, is, must be, positive. "Thought is nothing else than the comparison of objects known; and as knowledge is always positive, so must our thought be. All knowledge implies an object known; and so all thought involves an object about which we think, and must, therefore, be positive--that is, it must embrace within itself the conception of certain qualities as belonging to the object." 336