I have never grown up, but I will never stop growing.
In the long run, there are no secrets. in science. The universe will not cooperate in a cover-up.
The piece of equipment I’m most found off is my telescope. The other night I had a superb view of the moon.
The Shuttle is to space flight what Lindbergh was to commercial aviation.
We always thought the living Earth was a thing of beauty. It isn’t. Life has had to learn to defend itself against the planet’s random geological savagery.
The difference between machines and human beings is that human beings can be reproduced by unskilled labour.
We overestimate technology in the short term and underestimate technology in the long term.
When beauty is universal, it loses its power to move the heart, and only its absence can produce any emotional effect.
The moment when one first meets a great work of art has an impact that can never again be recaptured.
Can the synthesis of man and machine ever be stable, or will the purely organic component become such a hindrance that it has to be discarded?
I’ve been saying for a long time that I’m hoping to find intelligent life in Washington.
God said, ‘Cancel Program GENESIS.’ The universe ceased to exist.
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.
When you finally understand the universe, it will not only be stranger than you imagine, it will be stranger than you can imagine.
The one fact about the future of which we can be certain is that it will be utterly fantastic.
The West needs to relearn what the rest of the world has never forgotten – that there is nothing sinful in leisure as long as it does not degenerate into mere sloth.
The entire sweep of human history from the dark ages into the unknown future was considerably less important at the moment than the question of a certain girl and her feelings toward him.
The future is not to be forecast, but created.
Creationism, perhaps the most pernicious of the intellectual perversions now afflicting the American public.
The universe must be full of voices, calling from star to star in a myriad tongues. One day we shall join that cosmic conversation.