And above all things, never think that you're not good enough yourself. A man should never think that. My belief is that in life people will take you at your own reckoning.

It takes more than capital to swing business. You've got to have the A. I. D. degree to get by - Advertising, Initiative, and Dynamics.

Writing, to me, is simply thinking through my fingers.

I am not a speed reader. I am a speed understander.

I do not fear computers. I fear the lack of them.

Part of the inhumanity of the computer is that, once it is competently programmed and working smoothly, it is completely honest.

Self-education is, I firmly believe, the only kind of education there is.

Life is pleasant. Death is peaceful. It's the transition that's troublesome.

Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.

There is a single light of science, and to brighten it anywhere is to brighten it everywhere.

Individual science fiction stories may seem as trivial as ever to the blinder critics and philosophers of today - but the core of science fiction, its essence has become crucial to our salvation if we are to be saved at all.

Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition.

People who think they know everything are a great annoyance to those of us who do.

It is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.

When I read about the way in which library funds are being cut and cut, I can only think that American society has found one more way to destroy itself.

There is a cult of ignorance in the United States, and there has always been. The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that my ignorance is just as good as your knowledge.

If knowledge can create problems, it is not through ignorance that we can solve them.

Suppose that we are wise enough to learn and know - and yet not wise enough to control our learning and knowledge, so that we use it to destroy ourselves? Even if that is so, knowledge remains better than ignorance.

To insult someone we call him 'bestial. For deliberate cruelty and nature, 'human' might be the greater insult.

If my doctor told me I had only six minutes to live, I wouldn't brood. I'd type a little faster.

All sorts of computer errors are now turning up. You'd be surprised to know the number of doctors who claim they are treating pregnant men.

Violence is the last refuge of the incompetent.

I don't expect to live forever, but I do intend to hang on as long as possible.