TeX has found at least one bug in every Pascal compiler it's been run on, I think, and at least two in every C compiler

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

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

Any inaccuracies in this index may be explained by the fact that it has been prepared with the help of a computer.

The whole thing that makes a mathematician’s life worthwhile is that he gets the grudging admiration of three or four colleagues.

Meta-design is much more difficult than design; it's easier to draw something than to explain how to draw it.

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.