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.

AI has by now succeeded in doing essentially everything that requires 'thinking' but has failed to do most of what people and animals do 'without thinking'-that, somehow, is much harder.

I've never been a good estimator of how long things are going to take.

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

Always remember, however, that there’s usually a simpler and better way to do something than the first way that pops into your head.

If you optimize everything, you will always be unhappy.

Email is a wonderful thing for people whose role in life is to be on top of things. But not for me; my role is to be on the bottom of things. What I do takes long hours of studying and uninterruptible concentration.