Plasma seems to have the kinds of properties one would like for life. It's somewhat like liquid water--unpredictable and thus able to behave in an enormously complex fashion. It could probably carry as much information as DNA does. It has at least the potential for organizing itself in interesting ways.

Do not imagine that you have to know everything before you can do anything. My own best work was done when I was most ignorant.

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

The media always tries to make everything into a disaster, but it's mostly rubbish.

...the computer models are very good at solving equations of fluid dynamics but very bad at describing the real world. The real world is full of things like clouds and vegetation and soil and dust which the models describe very poorly.

I have the freedom to do what I want... bright people to talk to every day.

It's amazing how much progress there's been in China, and also India. Those are the places that really matter - they're half of the world's population. They're the places where things are enormously better now than they were 50 years ago. And I don't see anything that's going to stop that.