Crash programs fail because they are based on theory that, with nine women pregnant, you can get a baby in a month.

The greatest gain from space travel consists in the extension of our knowledge. In a hundred years this newly won knowledge will pay huge and unexpected dividends.

We can lick gravity, but sometimes the paperwork is overwhelming.

The best computer is a man, and it’s the only one that can be mass-produced by unskilled labor.

Conquering the universe one has to solve two problems: gravity and red tape. We could have mastered gravity.

There is beauty in space, and it is orderly. There is no weather, and there is regularity. It is predictable. Just look at our little Explorer; you can set your clock by it-literally; it is more accurate than your clock. Everything in space obeys the laws of physics. If you know these laws, and obey them, space will treat you kindly.

I believe in an immortal soul. Science has proved that nothing disintegrates into nothingness. Life and soul, therefore, cannot disintegrate into nothingness, and so are immortal.