Criticism may not be agreeable, but it is necessary. It fulfils the same function as pain in the human body. It calls attention to an unhealthy state of things.

I pass with relief from the tossing sea of Cause and Theory to the firm ground of Result and Fact.

Young people at universities study to achieve knowledge and not to learn a trade. We must all learn how to support ourselves, but we must also learn how to live. We need a lot of engineers in the modern world, but we do not want a world of modern engineers.

To secure your historical standing, be sure you are the first to write about it.

Nothing is more dangerous in wartime than to live in the temperamental atmosphere of a Gallup Poll, always feeling one's pulse and taking one's temperature.

Air power may either end war or end civilization.

The Russians will try all the rooms in a house, enter those that are not locked, and when they come to one that cannot be broken into, they will withdraw and invite you to dine genially that same evening.