The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!

Ethics change with technology.

SF isn't a genre; SF is the matrix in which genres are embedded, and because the SF field is never going in any one direction at any one time, there is hardly a way to cut it off.

The human species really could have faced global thermonuclear war. During seventy years of Cold War we grew used to it.

Everything starts as somebody's daydream.

In the world of words the imagination is one of the forces of nature.

In hindsight it may even seem inevitable that a socialist society will starve when it runs out of capitalists.

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.

We learn only to ask more questions.

It's very difficult for a black man to get out of South-Central Los Angeles, and get out civilized....The only men I know who have escaped, all began reading Robert Heinlein at age ten.

One mark of a good officer, he remembered, was the ability to make quick decisions. If they happen to be right, so much the better.

There are so many words in our language

Parents are like Kingdom, Your are the King.No matter where you stand, how Great n Rich you are!A King Is Always Known By His Kingdom.

England is obsessed with where you came from, and they are determined to keep you in that place, be it in a drawing room or in the gutter.

It won't be long before we'll be writing together again. I just hope they have a decent piano up there.

I'm energetic and passionate about the needs - the things we need to fix. I don't feel old, I don't feel like yesterday's news.

If the empire of superstition and hypocrisy should be overthrown, happy indeed will it be for the world; but if all religion and morality should be over-thrown with it, what advantage will be gained?

Most people will change, weather it's for the good or bad

I think it's miraculous that anybody survives themselves.

And how different her face looked the first time she really liked a boy who was not on a poster on her wall. And how her face looked when she realized she was in love with that boy.

Light is but the shadow of God.