I have so much that I want to do. I hate wasting time.

"Sooner or later disasters such as an asteroid collision or a nuclear war could wipe us all out, But once we spread out into space and establish independent colonies, our future should be safe."

I would like nuclear fusion to become a practical power source. It would provide an inexhaustible supply of energy, without pollution or global warming.

Theology is unnecessary.

It is no good getting furious if you get stuck. What I do is keep thinking about the problem but work on something else. Sometimes it is years before I see the way forward. In the case of information loss and black holes, it was 29 years.

We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.

Doing a job RIGHT the first time gets the job done. Doing the job WRONG fourteen times gives you job security.