I was a cannibal for twenty-five years. For the rest I have been a vegetarian.

When a thing is funny, search it carefully for a hidden truth.

One man that has a mind and knows it can always beat ten men who haven't and don't.

The American Constitution, one of the few modern political documents drawn up by men who were forced by the sternest circumstances to think out what they really had to face, instead of chopping logic in a university classroom.

Absolute honesty is as absurd an abstraction as an absolute temperature or an absolute value.

There is at bottom only one genuinely scientific treatment for all diseases, and that is to stimulate the phagocytes.

Progress is impossible without change; and those who cannot change their minds cannot change anything.