“Let it be considered that what is more wholesome than any particular belief is integrity of belief and that to avoid looking into the support of any belief from a fear that it may turn out rotten i...”

“It is the man of science, eager to have his every opinion regenerated, his every idea rationalized, by drinking at the fountain of fact, and devoting all the energies of his life to the cult of tru...”

“Upon this first, and in one sense this sole, rule of reason, that in order to learn you must desire to learn, and in so desiring not be satisfied with what you already incline to think, there follo...”

“To satisfy our doubts . . . it is necessary that a method should be found by which our beliefs may be determined by nothing human, but by some external permanency -- by something upon which our thi...”

“In all the works on pedagogy that ever I read and they have been many, big, and heavy I don't remember that any one has advocated a system of teaching by practical jokes, mostly cruel. That, howe...”

“It may be asked how I know that there are any Reals. If this hypothesis is the sole support of my method of inquiry, my method of inquiry must not be used to support my hypothesis. The reply is thi...”