Heroism is endurance for one moment more.

Do people ever reflect, one wonders, that the best way to protect against the penetration of one's secrets by others is to have the minimum of secrets to conceal?

It is an undeniable privilege of every man to prove himself right in the thesis that the world is his enemy; for if he reiterates it frequently enough and makes it the background of his conduct he is bound eventually to be right.

The United States should not jump around like an elephant frightened by a mouse.

Popular revolt against a ruthless, experienced modern dictatorship, which enjoys a monopoly over weapons and communications, ... is simply not a possibility in the modern age.

A foreign policy aimed at the achievement of total security is the one thing I can think of that is entirely capable of bringing this country to a point where it will have no security at all.

This is a big world. Billions - rapidly increasing billions - of people live outside our borders. Obviously, a great number of them, being much poorer than they think most of us are, look enviously over those borders and would like, if they could, to come here.