The hardest thing is to go to sleep at night, when there are so many urgent things needing to be done. A huge gap exists between what we know is possible with today's machines and what we have so far been able to finish.

The most important thing in the kitchen is the waste paper basket and it needs to be centrally located.

Science is what we understand well enough to explain to a computer. Art is everything else we do.

I decry the current tendency to seek patents on algorithms. There are better ways to earn a living than to prevent other people from making use of one's contributions to computer science.

It would be nice if we could design a virtual reality in Hyperbolic Space, and meet each other there.

A mathematical formula should never be "owned" by anybody! Mathematics belong to God.

Programmers waste enormous amounts of time thinking about, or worrying about, the speed of noncritical parts of their programs, and these attempts at efficiency actually have a strong negative impact when debugging and maintenance are considered. We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%.