He who ventures to answer these metaphysical questions at once by an appeal to a sort of INTUITIVE perception, like the person who says, "I think, and know that this, at least, is true, actual, and certain"—will encounter a smile and two notes of interrogation in a philosopher nowadays. "Sir," the philosopher will perhaps give him to understand, "it is improbable that you are not mistaken, but why should it be the truth?"

17. With regard to the superstitions of logicians, I shall never tire of emphasizing a small, terse fact, which is unwillingly recognized by these credulous minds—namely, that a thought comes when "it" wishes, and not when "I" wish; so that it is a PERVERSION of the facts of the case to say that the subject "I" is the condition of the predicate "think."