Where those evidences are to be found, Sir W. Hamilton has not failed to tell us. If mere intellectual speculations on the nature and origin of the material universe form a common ground in which the theist, the pantheist, and even the atheist, may alike expatiate, the moral and religious feelings of man--those facts of consciousness which have their direct source in the sense of personality and free will--plead with overwhelming evidence in behalf of a personal God, and of man's relation to Him, as a person to a person. We have seen, in a previous quotation, Hamilton's emphatic declaration that "psychological materialism, if carried out fully and fairly to its conclusions, inevitably results in theological atheism." In the same spirit he tells us that "it is only as man is a free intelligence, a moral power, that he is created after the image of God;"[R] that "with the proof of the moral nature of man, stands or falls the proof of the existence of a Deity;" that "the possibility of morality depends on the possibility of liberty;" that "if man be not a free agent, he is not the author of his actions, and has therefore no responsibility, no moral personality at all;"[S] and, finally, "that he who disbelieves the moral agency of man, must, in consistency with that opinion, disbelieve Christianity."[T] We have thus, in the positive and negative sides of this philosophy, both a reasonable ground of belief and a warning against presumption. By our immediate consciousness of a moral and personal nature, we are led to the belief in a moral and personal God: by our ignorance of the unconditioned, we are led to the further belief, that behind that moral and personal manifestation of God there lies concealed a mystery--the mystery of the Absolute and the Infinite; that our intellectual and moral qualities, though indicating the nearest approach to the Divine Perfections which we are capable of conceiving, yet indicate them as analogous, not as identical; that we may naturally expect to find points where this analogy will fail us, where the function of the Infinite Moral Governor will be distinct from that of the finite moral servant; and where, consequently, we shall be liable to error in judging by human rules of the ways of God, whether manifested in nature or in revelation. Such is the true lesson to be learnt from a philosophy which tells us of a God who is "in a certain sense revealed, in a certain sense concealed--at once known and unknown." [R] _Lectures_, vol. i., p. 30. [S] _Lectures_, vol. i, p. 33. [T] _Ibid._, p. 42.