Men are mortal, but ideas are immortal.

The American's conviction that he must be able to look any man in the eye and tell him to go to hell is the very essence of the free man's way of life.

The radical novelty of modern science lies precisely in the rejection of the belief... that the forces which move the stars and atoms are contingent upon the preferences of the human heart.

Whereas each man claims his freedom as a matter of right, the freedom he accords to other men is a matter of toleration.

You don't have to preach honesty to men with creative purpose. Let a human being throw the engines of his soul into the making of something, and the instinct of workmanship will take care of his honesty.

Franklin D. Roosevelt is no crusader. He is no tribune of the people. He is no enemy of entrenched privilege. He is a pleasant man who, without any important qualifications for the office, would very much like to be President.

Unless the reformer can invent something which substitutes attractive virtues for attractive vices, he will fail.