Mathematics is really an art, not a science.

A model is such a fascinating toy that you fall in love with your creation.

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

It is not surprising that honest and well-informed experts can disagree about facts. But beyond the disagreement about facts, there is another deeper disagreement about values.

I think the biggest misconception is that everybody has to learn mathematics. That seems to be a complete mistake.

The laws of nature are constructed in such a way as to make the universe as interesting as possible.

Some of my friends like to keep science and religion together, but I certainly like to keep them separate.