I’ve always been attracted to the idea of a voice that is absolutely authoritative and yet absolutely humble.

The beauty of computer science is that it allows us to create something out of nothing.

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.

We must decouple economic growth from environmental degradation.

You may have the worst of your worries when you most appear to be at ease.