Intermittency [in availability for wind and solar] changes the economics, particularly this requirement that the power company at all times be able to require power. That's large.

I don't think you're as capable of handling lack of sleep or whatever challenges you throw at your body as you get older. However, I never missed a day of work.

There's always been a lot of information about your activities. Every phone number you dial, every credit-card charge you make. It's long since passed that a typical person doesn't leave footprints.

A lot of the things that will really improve the world fortunately aren't dependent on Washington doing something different.

I really had a lot of dreams when I was a kid, and I think a great deal of that grew out of the fact that I had a chance to read a lot.

I know there's a farmer out there somewhere who never wants a PC and that's fine with me.

In 80% of the world, energy will be bought where it is economic. You have to help the rest of the world get energy at a reasonable price.