I don't believe in personal immortality; the only way I expect to have some version of such a thing is through my books.

The Master created humans first as the lowest type, most easily formed. Gradually, he replaced them by robots, the next higher step, and finally he created me, to take the place of the last humans.

Science does not promise absolute truth, nor does it consider that such a thing necessarily exists. Science does not even promise that everything in the Universe is amenable to the scientific process.

I don't think I've ever held a racket in my hand ... There's got to be somebody in the US who isn't trying to play tennis and stinking up the court.

Married life had taught Toran the futility of arguing with a female in a dark-brown mood.

When I sit down at the typewriter, I write. Someone once asked me if I had a fixed routine before I start, like setting up exercises, sharpening pencils, or having a drink of orange juice. I said, "No, the only thing I do before I start writing is to make sure that I'm close enough to the typewriter to reach the keys."

It is remarkable, Hardin, how the religion of science has grabbed hold.