Utopia was here at last: its novelty had not yet been assailed by the supreme enemy of a ll Utopias - boredom.

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

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

If I didn't exist, I would have invented myself.

As our own species is in the process of proving, one cannot have superior science and inferior morals. The combination is unstable and self-destroying.

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 more wonderful the means of communication, the more trivial, tawdry, or depressing its contents seemed to be.