There can be no liberty for a community which lacks the means by which to detect lies.

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.

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

Private property was the original source of freedom. It still is its main bulwark.

In a democracy, the opposition is not only tolerated as constitutional, but must be maintained because it is indispensable.

In a free society the state does not administer the affairs of men. It administers justice among men who conduct their own affairs.