I assume that to prevent illness in later life, you should never have been born at all.

A socialist is somebody who doesn't have anything, and is ready to divide it up equally among everybody.

I was a freethinker before I knew how to think.

I hope you have lost your good looks, for while they last any fool can adore you, and the adoration of fools is bad for the soul.

Few people think more than two or three times a year; I have made an international reputation for myself by thinking once or twice a week.

I tell you that as long as I can conceive something better than myself I cannot be easy unless I am striving to bring it into existence or clearing the way for it.

I do not waste my time writing pot-boilers: the pot must be boiled, and even my pot au feu has some chunks of fresh meat in it. ...I have no time to boil myself down; and anyhow I could not do so and preserve all the necessary nutriment and the flavoring on which the digestibility depends.