The intelligent fights only when he must and never for sport.

Social responsibility above the level of family, or at most of tribe, requires imagination-- devotion, loyalty, all the higher virtues -- which a man must develop himself; if he has them forced down him, he will vomit them out.

I'll give you an exact definition. When the happiness of another person becomes as essential to yourself as your own, then the state of love exists.

A community where everyone is a ruthless murderer, with handy access to death-dealing devices, is a very polite community.

Progress isn't made by early risers. It's made by lazy men trying to find easier ways to do something.

A zest for living must include a willingness to die.

Some people insist that "mediocre" is better than "best." They delight in clipping wings because they themselves can't fly. They despise brains because they have none.