The American who first discovered Columbus made a bad discovery.

We are obliged to regard many of our original minds as crazy at least until we have become as clever as they are.

Do not say hypothesis, and even less theory: say way of thinking.

Man is always partial and is quite right to be. Even impartiality is partial.

To grow wiser means to learn to know better and better the faults to which this instrument with which we feel and judge can be subject.

There is no more important rule of conduct in the world than this: attach yourself as much as you can to people who are abler than you and yet not so very different that you cannot understand them.

We have no words for speaking of wisdom to the stupid. He who understands the wise is wise already.