Quotes by Isaac Asimov

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

The intelligent man is never bored.

Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.

It is the writer who might catch the imagination of young people, and plant a seed that will flower and come to fruition.

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

How bright and beautiful a comet is as it flies past our planet--provided it does fly past it.

All life is nucleic acid the rest is commentary.

Nonviolence doesn't always work -- but violence never does.

To bring about destruction by overcrowding, mass starvation, anarchy, the destruction of our most cherished values, there is no need to do anything. We need only do nothing except what comes naturally, and breed and how easy it is to do nothing.

It's one thing to have guts; it's another to be crazy.

If a conclusion is not poetically balanced, it cannot be scientifically true.

Is not all this an extraordinary concatenation of coincidence?
Pelorat said, If you list it like that?
List it any way you please, said Trevize. I don't believe in extraordinary concatenations of coincidence.

Intelligence is an accident of evolution, and not necessarily an advantage.

Arthur Clarke says that I am first in science and second in science fiction in accordance with an agreement we have made. I say he is first in science fiction and second in science.

We were never under any delusions as to which was more important, an individual or humanity.

Of course, the reader might argue that I was as stubborn in my viewpoint as they were in theirs. Yes, indeed, but I was right and they were wrong and that made the difference.

No one is so modest as not to believe himself a competent amateur sleuth.

Stoop, then, or you will be beaten to your knees. Stoop voluntarily, and you may save a remnant. You have depended on metal and power and they have sustained you as far as they could. You have ignored mind and morale and they have failed you.

At odd and unpredictable times, we cling in fright to the past .

He slept that night the sleep of a successfully stubborn man.

There is no belief, however foolish, that will not gather its faithful adherents who will defend it to the death.

Eventually, it had to be accepted that God had created invisible stars and this was the very first hint that perhaps the Universe had not been created with human welfare as its primary object (a point I have never seen stressed in histories of science).

The infinity of potential knowledge may be infinitely greater than the infinity of my actual knowledge.

The final end of Eternity, and the beginning of Infinity.

It has always been my ambition to die in harness with my head face down on a keyboard and my nose caught between two of the keys.

Most of the iron that has found its way into the Earth's core and its surface rocks -- and into our own blood, as well -- once existed in white dwarfs that exploded.

I am an atheist, out and out. It took me a long time to say it.

The lucky few who can be involved in creative work of any sort will be the true elite of mankind, for they alone will do more than serve a machine.

No vision of God and heaven ever experienced by the most exalted prophet can, in my opinion, match the vision of the universe as seen by Newton or Einstein.

Democracy cannot survive overpopulation.

I don't think I've ever held a racket in my hand ... There's got to be somebody in the US who isn't trying to play tennis and stinking up the court.

It is remarkable, Hardin, how the religion of science has grabbed hold.

And his idea of solid comfort was to be left in utter solitude for two or three hours.

But what's the difference how they act? How about how I feel? I love Robutt and that's what counts.

Carbon is the basis of human life and iron of robot life. It becomes easy to speak of C Fe when you wish express a culture that combines the best of the two on an equal but parallel basis.

She's qualified all right. She understands robots like a sister--comes from hating human beings so much, I think.

Logical but not reasonable. Wasn't that the definition of a robot?

Since emotions are few and reasons are many (said the robot Giscard) the behavior of a crowd can be more easily predicted than the behavior of one person.

You don't have to be able to lay eggs to know when one of them is rotten.

The dangers that face the world can, every one of them, be traced back to science. The salvations that may save the world will, every one of them, be traced back to science.

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.

The Solarians have given up something mankind has had for a million years; something worth more than atomic power, cities, agriculture, tools, fire, everything; because it's something that made everything possible ... The tribe, sir. Cooperation between individuals.

I grow grandiose, which is a good sign I should become prosaic.

A neat and orderly laboratory is unlikely. It is, after all, so much a place of false starts and multiple attempts.

If we only obey those rules that we think are just and reasonable, then no rule will stand, for there is no rule that some will not think is unjust and unreasonable.

When stupidity is considered patriotism, it is unsafe to be intelligent.

It was odd how that last deed caught the imagination of the world. All that Andrew had done before had not swayed them. But he had finally accepted even death to be human, and the sacrifice was too great to be rejected.

Goodbye, Hari, my love. Remember always -- all you did for me.
           
-I did nothing for you.
           
-You loved me and your love made me -- human.

Anything you make forbidden gains sexual attractiveness. Would you be particularly interested in women's breasts if you lived in a society in which they were displayed at all times?

I wouldn't want the people of Baleyworld to live that long as a general thing. The pace of historical and intellectual advance would then become too slow. Those at the top would stay in power too long. Baleyworld would sink into conversation and decay -- as your world has done.

The essential building block is...the true love that is impossible to define for those who have never experienced it and unnecessary to define for those who have.

One might accept death reasoningly, with every aspect of the conscious mind, but the body was a brute beast that knew nothing of reason.

When, however, the lay public rallies round an idea that is denounced by distinguished but elderly scientists and supports that idea with great fervor and emotion--the distinguished but elderly scientists are then, after all, probably right.

Do not forget that a traitor within our ranks, known to us, can do more harm to the enemy than a loyal man can do good to us.

Any fool can tell a crisis when it arrives. The real service to the state is to detect it in embryo.

Postulates are based on assumption and adhered to by faith. Nothing in the Universe can shake them.

You can prove anything you want by coldly logical reason -- -if you pick the proper postulates.

It's just science fiction so it's allowed to be silly, and childish, and stupid. It's just science fiction, so it doesn't have to make sense. It's just science fiction, so you must ask nothing more of it than loud noises and flashing lights.

The advance of genetic engineering makes it quite conceivable that we will begin to design our own evolutionary progress.

No one can possibly have lived through the Great Depression without being scarred by it. No amount of experience since the depression can convince someone who has lived through it that the world is safe economically.

There is nothing so eternally adhesive as the memory of power.

We must not be taken in by the myth of youth, the unending propaganda to the effect that young men are younger than old men; that they are better looking; that they are slimmer, stronger and more athletic; that they can hold a girl in more romantic fashion and speak more sweetly.

All roads lead to Trantor, says the old proverb, and that is where all stars end.

I made up my mind long ago to follow one cardinal rule in all my writing -- to be clear.

Suppose we were to teach creationism. What would be the content of the teaching? Merely that a creator formed the universe and all species of life ready-made? Nothing more? No details?

It was easy to cover up ignorance by the mystical word intuition.

No one suggests that writing about science will turn the entire world into a model of judgment and creative thought. It will be enough if they spread the knowledge as widely as possible.

Humanity is cutting down its forests, apparently oblivious to the fact that we may not be able to live without them.

When asked for advice by beginners. Know your ending, I say, or the river of your story may finally sink into the desert sands and never reach the sea.

There is no more desire to live past one's time than to die before it.

I figure that if God actually does exist, he is big enough to understand an honest difference of opinion.

Uncertainty that comes from knowledge (knowing what you don't know) is different from uncertainty coming from ignorance.

No individual death among human beings is important. Someone who dies leaves his work behind and that does not entirely die. It never entirely dies as long as humanity exists.

I am all for cultural diversity and would be willing to see each recognizable group value its cultural heritage. I am a New York patriot, for instance, and if I lived in Los Angeles, I would love to get together with other New York expatriates and sing Give My Regards to Broadway.

God, how that stings! I've spent a lifetime loving science fiction and now I find that you must expect nothing of something that's just science fiction.

It is almost impossible to think of something no one has thought of before, but it is always possible to add different frills.

You don't need to predict the future. Just choose a future -- a good future, a useful future -- and make the kind of prediction that will alter human emotions and reactions in such a way that the future you predicted will be brought about. Better to make a good future than predict a bad one.

To test a perfect theory with imperfect instruments did not impress the Greek philosophers as a valid way to gain knowledge.

Life is glorious when it is happy; days are carefree when they are happy; the interplay of thought and imagination is far superior to that of muscle and sinew.

When I die I won't go to heaven or hell; there will just be nothingness.

Now any dogma, based primarily on faith and emotionalism, is a dangerous weapon to use on others, since it is almost impossible to guarantee that the weapon will never be turned on the user.

The cure for advanced gullibility is to go to sleep and consider matters again the next day.

My feeling is, quite simply, that if there is a God, He has done such a bad job that he isn't worth discussing.

The history of science is full of revolutionary advances that required small insights that anyone might have had, but that, in fact, only one person did.

The human mind works at low efficiency. Twenty percent is the figure usually given. When, momentarily, there is a flash of greater power, it is termed a hunch, or insight, or intuition.

A fire-eater must eat fire even if he has to kindle it himself.

The secret of the successful fool is that he's no fool at all.

I am not responsible for what other people think. I am responsible only for what I myself think, and I know what that is. No idea I've ever come up with has ever struck me as a divine revelation. Nothing I have ever observed leads me to think there is a God watching over me.