A useful definition of liberty is obtained only by seeking the principle of liberty in the main business of human life, that is to say, in the process by which men educate their responses and learn to control their environment.

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.

Men fall into a routine when they are tired and slack: it has all the appearance of activity with few of its burdens.

It is all very well to talk about being the captain of your soul. It is hard, and only a few heroes, saints, and geniuses have been the captains of their souls for any extended period of their lives.

An alliance is like a chain. It is not made stronger by adding weak links to it. A great power like the United States gains no advantage and it loses prestige by offering, indeed peddling, its alliances to all and sundry. An alliance should be hard diplomatic currency, valuable and hard to get, and not inflationary paper from the mimeograph machine in the State Department.

He has honor if he holds himself to an ideal of conduct though it is inconvenient, unprofitable, or dangerous to do so.

Art enlarges experience by admitting us to the inner life of others.