We demand of our political life greater certainty and greater perfection than we demand of our personal life.

The problem of freedom in America is that of maintaining a competition of ideas, and you do not achieve that by silencing one brand of idea.

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.

The Russians train; they do not dare educate.

If you mean by capitalism the God-given right of a few big corporations to make all the decisions that will affect millions of workers and consumers and to exclude everyone else from discussing and examining those decisions, then the unions are threatening capitalism.

There are almost no limits to the discoveries of how the human brain operates in illness and health, in sleep and waking and dreaming, in calm and under tension. The question is how far man can put these discoveries to use without using them not for cure but for power.

A world technology means either a world government or world suicide.