We need some contact with the things we sprang from. We need nature at least as a part of the context of our lives. Without cities we cannot be civilized. Without nature, without wilderness even, we are compelled to renounce an important part of our heritage.

A tragic writer does not have to believe in God, but he must believe in man.

Rhetoric takes no real account of the art in literature and morality takes no account of the art in life.

It is sometimes easier to head an institute for the study of child guidance than it is to turn one brat into a decent human being.

Not to have known - as most men have not - either the mountain or the desert is not to have known one's self. Not to have known one's self is to have known no one.

A book ... unlike a television program, moving picture or any other 'modern means of communication' ... can wait for years, yet be available at any moment when it happens to be needed.

The cockroach and the bird were both here long before we were. Both could.