The final test of a leader is that he leaves behind him in other men the conviction and the will to carry on.

Brains, you know, are suspect in the Republican Party.

In the end, advertising rests upon the fact that consumers are a fickle and superstitious mob, incapable of any real judgment as to what it wants or how it is to get what it thinks it likes.

It is not the idea as such which the censor attacks, whether it be heresy or radicalism or obscenity. He attacks the circulation of the idea among the classes which in his judgment are not to be trusted with the idea.

True opinions can prevail only if the facts to which they refer are known; if they are not known, false ideas are just as effective as true ones, if not a little more effective.

A useful definition of liberty is obtained only by seeking the principle of liberty in the main business of human life, that is to say, in the process by which men educate their responses and learn to control their environment.

The best servants of the people, like the best valets, must whisper unpleasant truths in the master's ear. It is the court fool, not the foolish courtier, whom the king can least afford to lose.