Every mob, in its ignorance and blindness and bewilderment, is a League of Frightened Men that seeks reassurance in collective action.

There are some who become spies for money, or out of vanity and megalomania, or out of ambition, or out of a desire for thrills. But the malady of our time is of those who become spies out of idealism.

The tourist who moves about to see and hear and open himself to all the influences of the places which condense centuries of human greatness is only a man in search of excellence.

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.

Every step by which men add to their knowledge and skills is a step also by which they can control other men.

When you choose the lesser of two evils, always remember that it is still an evil.

The way to prevent war is to bend every energy toward preventing it, not to proceed by the dubious indirection of preparing for it.