Certitude is not the test of certainty.

Anytime you see a Hungarian, kick him. He'll know why. Any two philosophers can tell each other all they know in two hours.

There is in all men a demand for the superlative, so much so that the poor devil that has no other way of reaching it attains it by getting drunk.

A man's opinions are generally of much more value than his arguments.

The very minute a thought is threatened with publicity it seems to shrink towards mediocrity.

Men must turn square corners when they deal with the Government.

To be master of any branch of knowledge, you must master those which lie next to it, and thus to know anything you must know all.