If you enjoy living, it is not difficult to keep the sense of wonder.

Science and religion have to go hand in hand with the mystery, because there's a certain point beyond which you say, "There are no answers."

Action is hope. There is no hope without action.

A book has got smell. A new book smells great. An old book smells even better. An old book smells like ancient Egypt.

We must move into the universe. Mankind must save itself. We must escape the danger of war and politics. We must become astronauts and go out into the universe and discover the God in ourselves.

A single face turned upward toward all Time One flesh, one ecstasy, one peace.

I don’t write things to benefit the world. If it happens that they do, swell. I didn’t set out to do that. I set out to have a hell of a lot of fun.