"If in man, intelligence be a free power,--in so far as its liberty extends, intelligence must be independent of necessity and matter; and a power independent of matter necessarily implies the existence of an immaterial subject--that is, a spirit. If, then, the original independence of intelligence on matter in the human constitution--in other words, if the spirituality of mind in man be supposed a datum of observation, in this datum is also given both the condition and the proof of a God. For we have only to infer, what analogy entitles us to do, that intelligence holds the same relative supremacy in the universe which it holds in us, and the first positive condition of a Deity is established, in the establishment of the absolute priority of a free creative intelligence. On the other hand, let us suppose the result of our study of man to be, that intelligence is only a product of matter, only a reflex of organization, such a doctrine would not only not afford no basis on which to rest any argument for a God, but, on the contrary, would positively warrant the atheist in denying His existence. For if, as the materialist maintains, the only intelligence of which we have any experience be a consequent of matter,--on this hypothesis, he not only cannot assume this order to be reversed in the relations of an intelligence beyond his observation, but, if he argue logically, he must positively conclude that, as in man, so in the universe, the phenomena of intelligence or design are only in their last analysis the products of a brute necessity. Psychological Materialism, if carried out fully and fairly to its conclusions, thus inevitably results in theological Atheism; as it has been well expressed by Dr. Henry More, _Nullus in microcosmo spiritus, nullus in macrocosmo Deus_. I do not, of course, mean to assert that all materialists deny or actually disbelieve a God. For, in very many cases, this would be at once an unmerited compliment to their reasoning, and an unmerited reproach to their faith."--_Lectures_, vol. i, p. 31.[L]