America shudders at anything alien, and when it wants to shut its mind against any man's ideas it calls him a foreigner.

When you are seventeen you aren't really serious.

You may call for peace as loudly as you wish, but where there is no brotherhood there can in the end be no peace.

In our culture we make heroes of the men who sit on top of a heap of money, and we pay attention not only to what they say in their field of competence, but to their wisdom on every other question in the world.

Man must be at once more humble and more confident; more humble in the face of destructive potentials of what he can achieve, more confident of his own humanity as against computers and robots which are only engines to simulate him.

Power politics existed before Machiavelli was ever heard of; it will exist long after his name is only a faint memory. What he did, like Harvey, was to recognize its existence and subject it to scientific study.

Either men will learn to live like brothers, or they will die like beasts.