When I can't do something, this always impels me to study it.

I have lived most of my life with the conviction that I don't dream, because I never could retrieve a dream.

A good science fiction story is a story with a human problem, and a human solution, which would not have happened at all without its science content.

There are a lot of people who write very intensely about things they do not and cannot do.

Anybody can do anything he wants to if he wants to do it badly enough.

Writing is a communication.

I write a story as if it were a letter to someone and essentially, that's what you do.