...By far the most usual way of handling phenomena so novel that they would make for a serious rearrangement of our preconceptions is to ignore them altogether, or to abuse those who bear witness for them.

The first lecture in psychology that I ever heard was the first I ever gave.

The true is the name of whatever proves itself to be good in the way of belief, and good, too, for definite, assignable reasons.

The self-same atoms which, chaotically dispersed, made the nebula, now, jammed and temporarily caught in peculiar positions, form our brains; and the 'evolution' of brains, if understood, would be simply the account of how the atoms came to be so caught and jammed.

My thinking is first and last and always for the sake of my doing, and I can only do one thing at a time.

Pragmatism asks its usual question. "Grant an idea or belief to be true," it says, "what concrete difference will its being true make in anyone's actual life? How will the truth be realized? What experiences will be different from those which would obtain if the belief were false? What, in short, is the truth's cash-value in experiential terms?

The total possible consciousness may be split into parts which co-exist but mutually ignore each other.