The brightest minds in our field have been trying to find a definition of science fiction for these past seventy years. The short answer is, science fiction stories are given as possible, not necessarily here and now, but somewhere, sometime.

My problem with new writers is that it takes me five or six years to memorise the right names.

Hopeless causes are the only ones worth fighting for. The fight for the taxpayer is the most hopeless of them all.

I'd repair our education system or replace it with something that works.

Never fire a laser at a mirror.

You learn by writing short stories. Keep writing short stories. The money's in novels, but writing short stories keeps your writing lean and pointed.

In challenging a kzin, a simple scream of rage is sufficient. You scream and you leap.