[Social] science fiction is that branch of literature which is concerned with the impact of scientific advance on human beings.

Nothing has to be true, but everything has to sound true.

Human beings sometimes find a kind of pleasure in nursing painful emotions, in blaming themselves without reason or even against reason.

However, I continue to try and I continue, indefatigably, to reach out. There's no way I can single-handedly save the world or, perhaps, even make a perceptible difference - but how ashamed I would be to let a day pass without making one more effort.

Modern science fiction is the only form of literature that consistently considers the nature of the changes that face us.

They don't want equal time - they want all the time there is.

It’s a poor atom blaster that won’t point both ways.