We make our friends; we make our enemies; but God makes our next door neighbour.

As long as the vision of heaven is always changing, the vision of earth will be exactly the same. No ideal will remain long enough to be realized, or even partly realized. The modern young man will never change his environment; for he will always change his mind.

The human race is always trying this dodge of making everything entirely easy; but the difficulty which it shifts off one thing it shifts to another.

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

All science, even the divine science, is a sublime detective story. Only it is not set to detect why a man is dead; but the darker secret of why he is alive.

I said to him, "Shall I tell you where the men are who believe most in themselves? For I can tell you. I know of men who believe in themselves more colossally than Napoleon or Caesar. I know where flames the fixed star of certainty and success. I can guide you to the thrones of the Super-men. The men who really believe in themselves are all in lunatic asylums.

Imagination does not breed insanity. Exactly what does breed insanity is reason. Poets do not go mad, but chess players do.