Success makes men rigid and they tend to exalt stability over all the other virtues; tired of the effort of willing they become fanatics about conservatism.

Ages when custom is unsettled are necessarily ages of prophecy. The moralist cannot teach what is revealed; he must reveal what can be taught. He has to seek insight rather than to preach.

It is easier to develop great power than it is to know how to use it wisely.

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

Men are mortal, but ideas are immortal.

If the estimate of the House Committee on Foreign Affairs is correct, then Russia has lost the cold war in western Europe.

The unexamined life, said Socrates, is unfit to be lived by man. This is the virtue of liberty, and the ground on which we may justify our belief in it, that it tolerates error in order to serve truth.