Computer models of the climate....[are] a very dubious business if you don't have good inputs.

You ask: what is the meaning or purpose of life? I can only answer with another question: do you think we are wise enough to read God's mind?

The greatest unsolved mysteries are the mysteries of our existence as conscious beings in a small corner of a vast universe.

If you want to have a program for moving out into the universe, you have to think in centuries not in decades.

A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering.

Technology must be guided and driven by ethics if it is to do more than provide new toys for the rich.

The idea that global warming is the most important problem facing the world is total nonsense and is doing a lot of harm.

Unfortunately the global warming hysteria, as I see it, is driven by politics more than by science.

In the end it is how you fight, as much as why you fight, that makes your cause good or bad.

So long as you have courage and a sense of humor, it is never too late to start life afresh.

Technology is a gift of God. After the gift of life it is perhaps the greatest of God's gifts. It is the mother of civilizations, of arts and of sciences.

We do not go (to the theatre) like our ancestors to escape from the pressure of reality so much as to confirm our experience of it.

Nobody wants to end up super rich and famous - but divorced. I'm always clear on that and try to stay on the right side of the line.

A bonus: You don't have to diet to direct.

I see philosophy as a fairly abstract activity, as concerned mainly with the analysis of criticism and concepts, and of course most usefully of scientific concepts.

Mathematics is the queen of the sciences.

Or why you are wearing a picture of Santa Clause on you shirts, but-” “It’s Herman Melville.

By one Spirit we are all baptised into one body.

There's Madeleine, and then there's 'Madeleine Albright'. And I sometimes kind of think, who is this person? Once you become 'Madeleine Albright' it doesn't go away.

The experience of being in space didn't change my perspective of myself or of the planet or of life. I had no spiritual experience.

Communism to me is one-third practice and two-thirds explanation.