Adventure, I well know, is in the heart, not in the view.

The curve of imagination, the curve of brilliance and the curve of sanity are identical curves or at least similar curves... The more imagination a person has, why, the more intelligence, the more knowingness he has and the saner he's going to be.

In fact, you don’t have a soul, you are your own soul. In other words, you are not this book, your social security card, your body or your mind. You are you.

When reading a book, be very certain that you never go past a word you do not fully understand. The only reason a person gives up a study or becomes confused or unable to learn is because he or she has gone past a word that was not understood.

People who tell you that control is bad are trying to tell you that automobile accidents and industrial accidents are good.

That mind which understands itself is the mind of a free man.

A culture is as rich and as capable of surviving as it has imaginative artists, skilled men of science, a high ethic level, workable government, land and natural resources, in about that order of importance.