That which distinguishes the one from the other does not lie in the primary and original principle, in the inner nature, in the kernel of the two phaenomena (this kernel being in both alike the Will of the individual); it is found in what is secondary, in the intellect, in the degree of perceptive capacity. It is true that the latter is incomparably higher in man, by reason of his added faculty of abstract knowledge, called Reason; nevertheless this superiority is traceable solely to a greater cerebral development, in other words, to the corporeal difference, which is quantitative, not qualitative, of a single part, the brain. In all other respects the similarity between men and animals, both psychical and bodily, is sufficiently striking. So that we must remind our judaised friends in the West, who despise animals, and idolise Reason, that if they