It can be shown that a mathematical web of some kind can be woven about any universe containing several objects. The fact that our universe lends itself to mathematical treatment is not a fact of any great philosophical significance.

Americans need rest, but do not know it.

In considering irregular appearances, there are certain very natural mistakes which must be avoided.

a generation that cannot endure boredom will be a generation of little men, of men unduly divorced from the slow process of nature, of men in whom every vital impulse slowly withers as though they were cut flowers in a vase.

The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts.

A man without a bias cannot write interesting history - if indeed such a man exists.

The true spirit of delight...is to be found in mathematics as surely as in poetry.