Truths emerge from facts, but they dip forward into facts again and add to them; which facts again create or reveal new truth (the word is indifferent) and so on indefinitely. The 'facts' themselves meanwhile are not true. They simply are. Truth is the function of the beliefs that start and terminate among them.

I know that you, ladies and gentlemen, have a philosophy, each and all of you, and that the most interesting and important thing about you is the way in which it determines the perspective in your several worlds.

I am tired of the position of the dried-up critic and doubter. The believer is the true full man. (from a biography of James by Robert D. Richardson)

All that we need explicitly to note is that, the more the passive attention is relied on, by keeping the material interesting; and the less the kind of attention requiring effort is appealed to; the more smoothly and pleasantly the classroom work goes on.

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

Faith means belief in something concerning which doubt is still theoretically possible ... faith is the readiness to act in a cause the prosperous issue of which is not certified to us in advance.

Science as such assuredly has no authority, for she can only say what is, not what is not.