Despite all that education and experience can do, I retain a certain level of unsophistication that I cannot eradicate and that my friends find amusing. In fact, I think I sometimes detect conspiratorial plottings among my friends to protect me against my own lack of sophistication. I don't mind. I suspect that I am never quite as unsophisticated as they think I am, but I don't mind.

And in man is a three-pound brain which, as far as we know, is the most complex and orderly arrangement of matter in the universe.

Of course there are worlds. Millions of them! Every star you see has worlds, and most of those you don't see.

Old people think young people haven't learned about love. Young people think old people have forgotten about love.

It took me thirty-six years; and, in some fifty stories, ranging in length from short-shorts to novels, I think I must have touched, in one way or another, on every aspect of computers and computerization. And (mark this!) I did it without ever knowing anything at all about computers in any real sense. To this day, I don't. I am totally inept with machinery... on my typewriter I turn out books at the contemptible rate of one a month

I don’t like anything that’s got to be. I want to know why.

Jokes of the proper kind, properly told, can do more to enlighten questions of politics, philosophy, and literature than any number of dull arguments.