Getting information from the internet is like getting a glass of water from the Niagara Falls..

The dinosaurs disappeared because they could not adapt to their changing environment. We shall disappear if we cannot adapt to an environment that no….

If an elderly but distinguished scientist says that something is possible, he is almost certainly right; but if he says that it is impossible, he is ….

The limits of the possible can only be defined by going beyond them into the impossible..

I don't believe in astrology; I'm a Sagittarius and we're skeptical..

One theory which can no longer be taken very seriously is that UFOs are interstellar spaceships..

The Earth would only have to move a few million kilometers sunward-or starward-for the delicate balance of climate to be destroyed. The Antarctic ice….

Many, and some of the most pressing, of our terrestrial problems can be solved only by going into space. Long before it was a vanishing commodity, th….

I can never look now at the Milky Way without wondering from which of those banked clouds of stars the emissaries are coming. If you will pardon so c….

It is not easy to see how the more extreme forms of nationalism can long survive when men have seen the Earth in its true perspective as a single sma….

And because, in all the Galaxy, they had found nothing more precious than Mind, they encouraged its dawning everywhere. They became farmers in the fi….

Even if we never reach the stars by our own efforts, in the millions of years that lie ahead it is almost certain that the stars will come to us. Iso….

I don't pretend we have all the answers. But the questions are certainly worth thinking about..

In this universe the night was falling; the shadows were lengthening towards an east that would not know another dawn. But elsewhere the stars were s….

How inappropriate to call this planet Earth when it is quite clearly Ocean..

There were some things that only time could cure. Evil men could be destroyed, but nothing could be done with good men who were deluded..

Somewhere in me is a curiosity sensor. I want to know what's over the next hill. You know, people can live longer without food than without informati….

To find anything comparable with our forthcoming ventures into space, we must go back far beyond Columbus, far beyond Odysseus-far, indeed, beyond th….

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 su….

The only real problem in life is what to do next..

Isn't killing people in the name of God a pretty good definition of insanity?.