When two's company, three's the result!

The moment you understand the whole Universe, is the moment you slightly begin to understand the way God's mind works

I believe in universal health care. And I am not afraid to say so.

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.

Life would be tragic if it weren't funny.

Without imperfection, you or I would not exist.

Eternity is a long time, especially towards the end.