Science is the study of the admitted laws of existence, which cannot prove a universal negative about whether those laws could ever be suspended by something admittedly above them. It is as if we were to say that a lawyer was so deeply learned in the American Constitution that he knew there could never be a revolution in America.

Youth is the period in which a man can be hopeless. The end of every episode is the end of the world. But the power of hoping through everything, the knowledge that the soul survives its adventures, that great inspiration comes to the middle-aged.

Facts as facts do not always create a spirit of reality, because reality is a spirit.

A radical generally meant a man who thought he could somehow pull up the root without affecting the flower. A conservative generally meant a man who wanted to conserve everything except his own reason for conserving anything.

To hurry through one's leisure is the most unbusiness-like of actions.

[Paradox is] truth standing on its head to gain attention.

All we know of the Missing Link is that he is missing - and he won't be missed either.