People want to be happy, isn't that right? Haven't you heard it all your life? I want to be happy, people say. Well, aren't they? Don't we keep them moving, don't we give them fun? That's all we live for, isn't it? For pleasure, for titillation? And you must admit our culture provides plenty of these.

He stood breathing, and the more he breathed the land in, the more he was filled up with all the details of the land. He was not empty. There was more than enough here to fill him. There would always be more than enough.

Love is the answer to everything. It's the only reason to do anything.

Time was a film run backward. Suns fled and ten million moons fled after them.

MOTHER: Why, just lying there, Jim, you run so fast. I never saw anyone move so much, just sleeping. Promise me, Jim. Wherever you go and come back, bring lots of kids. Let them run wild. Let me spoil them, some day. JIM: I'm never going to own anything that can hurt me.

If you write a hundred short stories and they're all bad, that doesn't mean you've failed. You fail only if you stop writing.

Fantasies are things that can't happen, and science fiction is about things that can happen.