There is no reason to assume that the universe has the slightest interest in intelligence—or even in life. Both may be random accidental by-products ….

Any technology distinguishable from magic is insufficiently advanced..

Any path to knowledge is a path to God-or Reality, whichever word one prefers to use.

He was moving through a new order of creation, of which few men had ever dreamed. Beyond the realms of sea and land and air and space lay the realms ….

Even by the twenty-second century, no way had yet been discovered of keeping elderly and conservative scientists from occupying crucial administrativ….

Now I understand,” said the last man..

We have to abandon the idea that schooling is something restricted to youth. How can it be, in a world where half the things a man knows at 20 are no….

If such a thing had happened once, it must surely have happened many times in this galaxy of a hundred billion suns..

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 w….

Our lifetime may be the last that will be lived out in a technological society..

'2001' was written in an age which now lies beyond one of the great divides in human history; we are sundered from it forever by the moment when Neil….

One of the biggest roles of science fiction is to prepare people to accept the future without pain and to encourage a flexibility of the mind. Politi….

Now, before you make a movie, you have to have a script, and before you have a script, you have to have a story; though some avant-garde directors ha….

It was the mark of a barbarian to destroy something one could not understand..

Politicians should read science fiction, not westerns and detective stories..

The universe must be full of voices, calling from star to star in a myriad tongues. One day we shall join that cosmic conversation..

The phenomenon of UFO doesn't say anything about the presence of intelligence in space. It just shows how rare it is here on the earth..

A wise man once said that all human activity is a form of play. And the highest form of play is the search for Truth, Beauty and Love. What more is n….

It must be wonderful to be seventeen, and to know everything..

The best proof of intelligent life in space is that it hasn't come here..

If the house is to be demolished tomorrow anyhow, people seem to feel, we may as well burn the furniture today. None of our problems are insoluble...….