I wrote the first book, Harvest of Stars, and as I was writing it, I saw that certain implications had barely been touched on... It's perfectly obvious that two completely revolutionary things are going on, with cybernetics, and biological science.

My knowledge of the human psyche is as yet imperfect. Certain areas won't yield to computation.

Let us settle down to the serious business of getting drunk.

We live with our archetypes, but can we live in them?

There are some ideas so stupid that only intellectuals can believe in them, particularly left-wing intellectuals.

Machines can only find what ignorant men have programmed them to find.

A fanatic's willingness to kill or be killed in the service of a cause cannot prove the rightness of that cause.