You fail only if you stop writing.

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."

Insanity is relative. It depends on who has who locked in what cage.

Science fiction is the most important literature in the history of the world, because it's the history of ideas, the history of our civilization birthing itself. ...Science fiction is central to everything we've ever done, and people who make fun of science fiction writers don't know what they're talking about.

I've always known that the quality of love was the mind, even though the body sometimes refuses this knowledge. The body lives for itself. It lives only to feed and wait for the night. It's essentially nocturnal. But what of the mind which is born of the sun, William, and must spend thousands of hours of a lifetime awake and aware? Can you balance off the body, that pitiful, selfish thing of night against a whole lifetime of sun and intellect? I don't know.

The most improbable tales can be made believable, if your reader, through his sense, feels certain that he stands at the middle of events.

Everything is generated through your own will power.