Whenever I have endured or accomplished some difficult task -- such as watching television, going out socially or sleeping -- I always look forward to rewarding myself with the small pleasure of getting back to my typewriter and writing something.

When, however, the lay public rallies round an idea that is denounced by distinguished but elderly scientists and supports that idea with great fervor and emotion - the distinguished but elderly scientists are then, after all, probably right.

One of Walt Whitman's best-known poems is this one: When I heard the learn'd astronomer,.... The trouble is, Whitman is talking through his hat, but the poor soul didn't know any better

Nothing has to be true, but everything has to sound true.

Modern science fiction is the only form of literature that consistently considers the nature of the changes that face us.

Fertility is hereditary. If your parents didn't have any children, neither will you. I do not fear computers. I fear the lack of them.

Radiation, unlike smoking, drinking, and overeating, gives no pleasure, so the possible victims object.