It was one thing to have guessed it, another to have had that guess confirmed beyond possibility of refutation.

The moon is the first milestone on the road to the stars.

The best measure of a man's honesty isn't his income tax return. It's the zero adjust on his bathroom scale.

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

Moses Kaldor had always loved mountains; they made him feel nearer to the God whose nonexistence he still sometimes resented.

He found it both sad and fascinating that only through an artificial universe of video images could she establish contact with the real world.

. . . the newspapers of Utopia, he had long ago decided, would be terribly dull.