We are driven by the usual insatiable curiosity of the scientist, and our work is a delightful game.

So the old Copenhagen interpretation needs to be generalized, needs to be replaced by something that can be used for the whole universe, and can be used also in cases where there is plenty of individuality and history.

If we look at the way the universe behaves, quantum mechanics gives us fundamental, unavoidable indeterminacy, so that alternative histories of the universe can be assigned probability.

But when researchers at Bell Labs discovered that static tends to come from particular places in the sky, the whole field of radio astronomy opened up.

Science may never come up with a better office communication system than the coffee break.

Explorations into chemistry were done in our basement, sometimes with friends, and my parents must have had quite a bit of confidence in my abilities when they allowed me to experiment with explosive mixtures.

The number of known human fossils only increases slowly. But the manner of regarding and assessing them is capable of progressing rapidly, as indeed it does. In the absence of any absolutely sensational discovery in prehistory, there is an up-to-date and scientific manner of understanding man, which is solidly based on palaeontology.

Making movies is not rocket science. It's about relationships and communication and strangers coming together to see if they can get along harmoniously, productively, and creatively. That's a challenge. When it works, it's fantastic and will lift you up. When it doesn't work, it's almost just as fascinating.