“Knowledge about a thing is not the thing itself.”

“An outree explanation, violating all our preconceptions, would never pass for a true account of a novelty. We should scratch round industriously till we found something less excentric.”

“There is something almost shocking in the notion of so chaste a function carrying this Kantian hurlyburly in her womb.”

“Metaphysics means nothing but an unusually obstinate effort to think clearly. The fundamental conceptions of psychology are practically very clear to us, but theoretically they are very confused, and one easily makes the obscurest assumptions in this science without realizing, until challenged, what internal difficulties they involve.”

“It does not follow, because our ancestors made so many errors of fact and mixed them with their religion, that we should therefore leave off being religious at all. By being religious we establish ourselves in possession of ultimate reality at the only points at which reality is given us to guard. Our responsible concern is with our private destiny, after all.”

“See the exquisite contrast of the types of mind! The pragmatist clings to facts and concreteness, observes truth at its work in particular cases, and generalises. Truth, for him, becomes a class-name for all sorts of definite working-values in experience. For the rationalist it remains a pure abstraction, to the bare name of which we must defer. When the pragmatist undertakes to show in detail just why we must defer, the rationalist is unable to recognise the concretes from which his own abstraction is taken. He accuses us of denying truth; whereas we have only sought to trace exactly why people follow it and always ought to follow it. Your typical ultra-abstractions fairly shudders at concreteness: other things equal, he positively prefers the pale and spectral. If the two universes were offered, he would always choose the skinny outline rather than the rich thicket of reality. It is so much purer, clearer, nobler.”

“Good-humor is a philosophic state of mind; it seems to say to Nature that we take her no more seriously than she takes us. I maintain that one should always talk of philosophy with a smile.”

“Be not afraid of life. Believe that life is worth living, and your belief will help create the fact.”