I did that for 40 years or more. I never had any writer's block. I got up in the morning, sat down at the typewriter - now, computer - lit up a cigarette.

I'm pretty catholic about what constitutes science fiction.

If you don't care about science enough to be interested in it on its own, you shouldn't try to write hard science fiction. You can write like Ray Bradbury and Harlan Ellison as much as you want.

Science fiction is the very literature of change.

That's what life is, just one learning experience after another, and when you're through with all the learning experiences you graduate and what you get for a diploma is, you die.

Advertising reaches out to touch the fantasy part of people's lives. And you know, most people's fantasies are pretty sad.

People as me how I do research for my science fiction. The answer is, I never do any research.