Once more, as I cannot hope to prove, let me expand and illustrate. The sensationalist has staked himself upon the possibility of explaining and justifying knowledge by conceiving it as the grouping and combination of the qualities directly given us in sensation. The special reasons advanced in support of this position are sufficiently technical and remote. But the motive which has kept the sensationalist at work, which animated Hobbes and Locke, Hume and John Stuart Mill, Voltaire and Diderot, was a human not a scholastic one. It was the belief that only in sensation do we get any personal contact with reality, and hence, any genuine guarantee of vital truth. Thought is pale, and remote from the concrete stuff of knowledge and experience. It only formulates and duplicates; it only divides and recombines that fullness of vivid reality got directly and at first hand in sense experience. Reason, compared with sense, is indirect, emasculate, and faded. Moreover, reason and thought in their very generality seem to lie beyond and outside the individual. In this remoteness, when they claim any final value, they violate the very first principle of the modern consciousness. What is the distinguishing characteristic of modern life, unless it be precisely that the individual shall not simply get, and reason about, truth in the abstract, but shall make it his own in the most intimate and personal way? He has not only to know the truth in the sense of knowing about it, but he must feel it. What is sensation but the answer to this demand for the most individual and intimate contact with reality? Show me a sensationalist and I will show you not only one who believes that he is on the side of concreteness and definiteness, as against washed-out abstractions and misty general notions: but also one who believes that he is identified with the cause of the individual as distinct from that of external authority. We have only to go to our Locke and our Mill to see that opposition to the innate and the _a priori_ was felt to be opposition to the deification of hereditary prejudice and to the reception of ideas without examination or criticism. Personal contact with reality through sensation seemed to be the only safeguard from opinions which, while masquerading in the guise of absolute and eternal truth, were in reality but the prejudices of the past become so ingrained as to insist upon being standards of truth and action.