[Footnote 290: ][ (return) ] "Lectures on Metaphysics," vol. i. p. 136.
[Footnote 291: ][ (return) ] Ibid., vol. i. p. 138.
[Footnote 292: ][ (return) ] Ibid., vol. i. p. 58.
[Footnote 293: ][ (return) ] Ibid., vol. i. p. 60.
[Footnote 294: ][ (return) ] Ibid., vol. ii. p. 375.
It has been supposed that the chief glory of Sir William Hamilton rested upon his able exposition and defense of the doctrine of Natural Realism. There are, however, indications in his writings that he regarded "the Philosophy of the Conditioned" as his grand achievement. The Law of the Conditioned had "not been generalized by any previous philosopher;" and, in laying down that law, he felt that he had made a new and important contribution to speculative thought.
The principles upon which this philosophy is based are:
1. The Relativity of all Human Knowledge.--Existence is not cognized absolutely and in itself, but only under special modes which are related to our faculties, and, in fact, determined by these faculties themselves. All knowledge, therefore, is relative--that is, it is of phenomena only, and of phenomena "under modifications determined by our own faculties." Now, as the Absolute is that which exists out of all relation either to phenomena or to our faculties of knowledge, it can not possibly be known.
2. The Conditionality of all Thinking.--Thought necessarily supposes conditions. "To think is to condition; and conditional limitation is the fundamental law of the possibility of thought. As the eagle can not out-soar the atmosphere in which he floats, and by which alone he is supported, so the mind can not transcend the sphere of limitation within and through which the possibility of thought is realized. Thought is only of the conditioned, because, as we have said, to think is to condition." [295] Now the Infinite is the unlimited, the unconditioned, and as such can not possibly be thought.
3. The notion of the Infinite--the Absolute, as entertained by man, is a mere "negation of thought."--By this Hamilton does not mean that the idea of the Infinite is a negative idea. "The Infinite and the Absolute are only the names of two counter imbecilities of the human mind" [296]--that is, a mental inability to conceive an absolute limitation, or an infinite illimitation; an absolute commencement, or an infinite non-commencement. In other words, of the absolute and infinite we have no conception at all, and, consequently, no knowledge. [297]