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

There is a special sadness in achievement, in the knowledge that a long-desired goal has been attained at last, and that life must now be shaped toward new ends.

I have never grown up, but I will never stop growing.

Any technology distinguishable from magic is insufficiently advanced.

I don't believe in God but I'm very interested in her.

Science can destroy religion by ignoring it as well as by disproving its tenets. No one ever demonstrated, so far as I am aware, the nonexistence of Zeus or Thor, but they have few followers now.

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