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April 10, 2026
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"Khedron was content with the order of things as it was. True, he might upset that order from time to time—but only by a little. He was a critic, not a revolutionary. On the placidly flowing river of time, he wished only to make a few ripples; he shrank from diverting its course."
"There was only one thing of which he could be certain now. Boredom would not be a serious problem for a considerable time to come."
"The fact was that he suffered from an incurable malady which, it seemed, attacked only Homo sapiens among all the intelligent races of the universe. That disease was religious mania. Throughout the earlier part of its history, the human race had brought forth an endless succession of prophets, seers, messiahs, and evangelists who convinced themselves and their followers that to them alone were the secrets of the universe revealed. Some of them succeeded in establishing religions which survived for many generations and influenced billions of men; others were forgotten even before their deaths. The rise of science, which with monotonous regularity refuted the cosmologies of the prophets and produced miracles which they could never match, eventually destroyed all these faiths. It did not destroy the awe, not the reverence and humility, which all intelligent beings felt as they contemplated the stupendous universe in which they found themselves. What it did weaken, and finally obliterate, were the countless religions, each of which claimed with unbelievable arrogance, that it was the sole repository of the truth and that its millions of rivals and predecessors were all mistaken."
"After a while Hilvar did his best to steer the conversation away from these meaningless morasses of theology in order to concentrate on the ascertainable facts."
"All explorers are seeking something they have lost. It is seldom that they find it, and more seldom still that the attainment brings them greater happiness than the quest."
"It is not my duty as an historian to predict the future, only to observe and interpret the past. But its lesson is clear enough; we have lived too long out of contact with reality, and now the time has come to rebuild our lives."
"He had discharged his destiny; now, perhaps, he could begin to live."
"They will have time enough, in those endless aeons, to attempt all things, and to gather all knowledge ... no Gods imagined by our minds have ever possessed the powers they will command ... But for all that, they may envy us, basking in the bright afterglow of Creation; for we knew the Universe when it was young."
"Yet now, as he roared across the night sky toward an unknown destiny, he found himself facing that bleak and ultimate question which so few men can answer to their satisfaction. What have I done with my life, he asked himself, that the world will be poorer if I leave it."
"Human judges can show mercy. But against the laws of nature, there is no appeal."
"As our own species is in the process of proving, one cannot have superior science and inferior morals. The combination is unstable and self-destroying."
"Behind every man now alive stand 30 ghosts, for that is the ratio by which the dead outnumber the living."
"The goal of the future is full unemployment, so we can play. That’s why we have to destroy the present politico-economic system."
"Our age is in many ways unique, full of events and phenomena that never occurred before and can never happen again. They distort our thinking, making us believe that what is true now will be true forever, though perhaps on a larger scale. Because we have annihilated distance on this planet, we imagine that we can do it once again. The facts are otherwise, and we see them more clearly if we forget the present and turn our minds towards the past."
"When the pioneers and adventurers of our past left their homes in search of new lands, they said good-bye forever to the place of their birth and the companions of their youth. Only a lifetime ago, parents waved farewell to their emigrating children in the virtual certainty that they would never meet again. And now, within one incredible generation, all this has changed."
"We have abolished space here on the little Earth; we can never abolish the space that yawns between the stars. Once again, as in the days when Homer sang, we are face-to-face with immensity and must accept its grandeur and terror, its inspiring possibilities and its dreadful restraints."
"To obtain a mental picture of the distance to the nearest star, compared to the nearest planet, you must imagine a world in which the closest object to you is only five feet away — and there is nothing else to see until you have travelled a thousand miles."
"Space can be mapped and crossed and occupied without definable limit; but it can never be conquered. When our race has reached its ultimate achievements, and the stars themselves are scattered no more widely than the seed of Adam, even then we shall still be like ants crawling on the face of the Earth. The ants have covered the world, but have they conquered it — for what do their countless colonies know of it, or of each other? So it will be with us as we spread out from Earth, loosening the bonds of kinship and understanding, hearing faint and belated rumors at second — or third — or thousandth hand of an ever dwindling fraction of the entire human race. Though the Earth will try to keep in touch with her children, in the end all the efforts of her archivists and historians will be defeated by time and distance, and the sheer bulk of material. For the numbers of distinct human societies or nations, when our race is twice its present age, may be far greater than the total number of all the men who have ever lived up to the present time. We have left the realm of comprehension in our vain effort to grasp the scale of the universe; so it must ever be, sooner rather than later."
"When you are next out of doors on a summer night, turn your head towards the zenith. Almost vertically above you will be shining the brightest star of the northern skies — Vega of the Lyre, twenty-six years away at the speed of light, near enough to the point of no return for us short-lived creatures. Past this blue-white beacon, fifty times as brilliant as our sun, we may send our minds and bodies, but never our hearts. For no man will ever turn homewards beyond Vega, to greet again those he knew and loved on Earth."
"Clarke's First Law: When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong."
"Clarke's Second Law: The only way of discovering the limits of the possible is to venture a little way past them into the impossible."
"Clarke's Third Law: Any sufficiently advanced technology is indistinguishable from magic."
"Clarke's Law of Revolutionary Ideas: Every revolutionary idea — in science, politics, art, or whatever — seems to evoke three stages of reaction. They may be summed up by the phrases:(1) "It's completely impossible — don't waste my time"; (2) "It's possible, but it's not worth doing"; (3) "I said it was a good idea all along.""
"I am afraid that this chapter will amply demonstrate the truth of Clarke's 69th Law, viz., "Reading computer manuals without the hardware is as frustrating as reading sex manuals without the software." In both cases the cure is simple though usually very expensive."
"We seldom stop to think that we are still creatures of the sea, able to leave it only because, from birth to death, we wear the water-filled space suits of our skins."
"We cannot predict the new forces, powers, and discoveries that will be disclosed to us when we reach the other planets and set up new laboratories in space. They are as much beyond our vision today as fire or electricity would be beyond the imagination of a fish."
"The rash assertion that 'God made man in His own image' is ticking like a time bomb at the foundation of many faiths, and as the hierarchy of the universe is disclosed to us, we may have to recognize this chilling truth: if there are any gods whose chief concern is man, they cannot be very important gods."
"One of the biggest roles of science fiction is to prepare people to accept the future without pain and to encourage a flexibility of mind. Politicians should read science fiction, not westerns and detective stories. Two-thirds of 2001 is realistic — hardware and technology — to establish background for the metaphysical, philosophical, and religious meanings later."
"Perhaps our role on this planet is not to worship God — but to create Him."
"The Ramans do everything in threes."
"… we have a situation in which millions of vehicles, each a miracle of often unnecssary complication, are hurtling in all directions under the impulse of anything up to 200 horsepower. Many of them are the size of small houses and contain a couple of tons of sophisticated alloys — yet often carry a single passenger. They can travel at a hundred miles an hour, but are lucky if they average forty. In one lifetime they have consumed more irreplaceable fuel than has been used in the whole previous history of mankind. The roads to support them, inadequate though they are, cost as much as a small war; the analogy is a good one, for the casualties are on the same scale."
"This is the first age that's ever paid much attention to the future, which is a little ironic since we may not have one."
"Through long and bitter experience, Rajasinghe had learned never to trust first impressions, but also never to ignore them."
"Since women are better at producing babies, presumably Nature has given men some talent to compensate. But for the moment I can't think of it."
"“I am the King.” Ah, but which king? The monarch who had stood on these granite flagstones — scarcely worn then, eighteen hundred years ago — was probably an able and intelligent man; but he failed to conceive that the time could ever come when he would fade into an anonymity as deep as that of his humblest subjects."
"Even though you were once a goddess, Kalidasa's heaven was only an illusion."
"I am unable to distinguish clearly between your religious ceremonies and apparently identical behavior at the sporting and cultural functions you have transmitted to me."
"The hypothesis you refer to as God, though not disprovable by logic alone, is unnecessary for the following reason. If you assume that the universe can be quote explained unquote as the creation of an entity known as God, he must obviously be of a higher degree of organization than his product. Thus you have more than doubled the size of the original problem, and have taken the first step on a diverging infinite regress. William of Ockham pointed out as recently as your fourteenth century that entities should not be multiplied unnecessarily. I cannot therefore understand why this debate continues."
"Meanwhile, among all its countless other effects upon human culture, Starglider had brought to its climax a process that was already well under way. It had put an end to the billions of the words of pious gibberish with which apparently intelligent men had addled their minds for centuries."
"There was no substitute for reality; one should be aware of imitations."
"Belief in God is apparently a psychological artifact of mammalian reproduction."
"Long ago, he had made that choice between work and life that can seldom be avoided at the highest levels of human endeavor ... Any fool could shuffle genes, and most did. But whether or not history gave him credit, few men could have achieved what he had done — and was about to do."
"One fail-safe after another had let them down. Helped by the ionospheric storm, the sheer perversity of inanimate things struck again."
"The fates could not possibly be so malevolent, now that he had only a few hundred meters to go. He was whistling in the dark, of course. How many aircraft had crashed at the very edge of the runway, after safely crossing an ocean? How many times had machines or muscles failed when there were only millimeters to go? Every possible piece of luck, bad as well as good, happened to somebody, somewhere. He had no right to expect any special treatment."
"Any teacher that can be replaced by a machine should be!"
"Plans for the final assault on Big Brother had already been worked out and agreed upon with Mission Control. Leonov would move in slowly, probing at all frequencies, and with steadily increasing power — constantly reporting back to Earth at every moment. When final contact was made, they would try to secure samples by drilling or laser spectroscopy; no one really expected these endeavours to succeed, as even after a decade of study TMA-1 resisted all attempts to analyse its material. The best efforts of human scientists in this direction seemed comparable to those of Stone Age men trying to break through the armour of a bank vault with flint axes."
"All these worlds are yours, except Europa. Attempt no landings there."
"I wanted to kill myself. I would have done it, too, if I had owned a gun. I was considering the gruesome alternatives — pills, slitting my wrists with a razor blade, jumping off a bridge — when another student called to ask me a detailed question on relativity. There was no way, after fifteen minutes of thinking about Mr. Einstein, that suicide was still a viable option. Divorce, certainly. Celibacy, highly likely. But death was out of the question. I could never have prematurely terminated my love affair with physics."
"I would defend the liberty of consenting adult creationists to practice whatever intellectual perversions they like in the privacy of their own homes; but it is also necessary to protect the young and innocent."
"I have encountered a few "creationists" and because they were usually nice, intelligent people, I have been unable to decide whether they were really mad, or only pretending to be mad. If I was a religious person, I would consider creationism nothing less than blasphemy. Do its adherents imagine that God is a cosmic hoaxer who has created the whole vast fossil record for the sole purpose of misleading humankind? And, although I do not necessarily agree with the paleontologist Teilhard de Chardin's advocacy of evolution as a major proof of the glory of God, de Chardin's attitude is both logical and inspiring. A creator who laid the foundations for the entire future at the beginning of time is far more awesome than a clumsy tinkerer who constantly modifies his creations and throws away entire species in the process."