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.

Ninety percent of SF [science fiction] is crud, but then, ninety percent of everything is crud.

No man can rob successfully over a period of years without pleasing the people he robs.

You must write to the people's expertise.

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

For years, I thought I simply didn't dream. I felt left out. Everybody else had a thing I didn't have.

Basically, fiction is people. You can't write fiction about ideas.