And they were all, when their souls grew warm, poets.

In our time the search for extraterrestrial life will eventually change our laws, our religions, our philosophies, our arts, our recreations, as well as our sciences. Space, the mirror, waits for life to come look for itself there.

Just write every day of your life. Read intensely.

You don't have to burn books to destroy a culture. Just get people to stop reading them.

A science fiction story is just an attempt to solve a problem that exists in the world, sometimes a moral problem, sometimes a physical or social or theological problem.

Long before you knew what death was you were wishing it on someone else.

Action is hope. There is no hope without action.