Just like the cosmonauts and their pee plants, all we have is each other.

. . . Moon-Watcher felt the first faint twinges of a new and potent emotion. It was a vague and diffuse sense of envy–of dissatisfaction with his life. He had no idea of its cause,...

La única posibilidad de descubrir los límites de lo posible es aventurarse un poco más allá de ellos, hacia lo imposible.

But please remember: this is only a work of fiction. The truth, as always, will be far stranger.

1. 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.2. The only way of discovering the...

The meteorites of 1908 and 1947 had struck uninhabited wilderness; but by the end of the twenty-first century there was no region left on Earth that could be safely used for celestial target practice.

What was more, they had taken the first step toward genuine friendship. They had exchanged vulnerabilities.

Few artists thrive in solitude and nothing is more stimulating than the conflict of minds with similar interests.

He had sometimes wondered if the real reason why men sought danger was that only thus could they find the companionship and solidarity which they unconsciously craved.

He had a suspicion of plausible answers; they were so often wrong.

Before you become too entranced with gorgeous gadgets and mesmerizing video displays, let me remind you that information is not knowledge, knowledge is not wisdom, and wisdom is not foresight. Each grows out of the...

Magic’s just science that we don’t understand yet.

Men knew better than they realized, when they placed the abode of the gods beyond the reach of gravity.

[“The Devil in the Dark”] impressed me because it presented the idea, unusual in science fiction then and now, that something weird, and even dangerous, need not be malevolent. That is a lesson that many...

And so Discovery drove on toward Saturn, as often as not pulsating with the cool music of the harpsichord, the frozen thoughts of a brain that had been dust for twice a hundred years.

Three million years! The infinitely crowded panorama of written history, with its empires and its kings, its triumphs and its tragedies, covered barely one thousandth of this appalling span of time.

Excessive interest in pathological behavior was itself pathological

Humor was the enemy of desire.

How inappropriate to call this planet “Earth,” when it is clearly “Ocean.

In accordance with the terms of the Clarke-Asimov treaty, the second-bestscience writer dedicates this book to the second-best science-fictionwriter.[dedication to Isaac Asimov from Arthur C. Clarke in his book Report on Planet Three]

Some dangers are so spectacular and so much beyond normal experience that the mind refuses to accept them as real, and watches the approach of doom without any sense of apprehension. The man who looks...

It is hard to draw any line between compassion and love.

In this single galaxy of ours there are eighty-seven thousand million suns. […] In challenging it, you would be like ants attempting to label and classify all the grains of sand in all the deserts...

All human plans [are] subject to ruthless revision by Nature, or Fate, or whatever one preferred to call the powers behind the Universe.