The important thing, once you have enough to eat and a nice house, is what you can do for others, what you can contribute to the enterprise as a whole.

Beware of bugs in the above code; I have only proved it correct, not tried it.

Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do.

The enjoyment of one's tools is an essential ingredient of successful work.

Programming is legitimate and necessary academic endeavour.

I try to learn certain areas of computer science exhaustively; then I try to digest that knowledge into a form that is accessible to people who don't have time for such study.

How can you own numbers? Numbers belong to the world.