When I say "an energy miracle," I mean that there will be some form of energy whose 24 hour cost really is competitive with hydrocarbons given, say, 20 years of learning curve. You invent it, then you look at how much its costs go down over the next 20 years, that it really beats hydrocarbons.

Most people overestimate what they can do in one year and underestimate what they can do in ten years.

If geek means you're willing to study things, and if you think science and engineering matter, I plead guilty. If your culture doesn't like geeks, you are in real trouble.

We really have to work hard to remind people even though this is far away, that's it's probably the most generous thing governments have ever come together to do. Since World War II, this new institution is the only one that's emerged and is saving all these lives.

Microsoft has had many, many successful products. I'm committed to one company. This is the industry I've decided to work in.

When I was growing up, my parents were almost involved in various volunteer things. My dad was head of Planned Parenthood. And it was very controversial to be involved with that.

I'm not somebody who goes to church on a regular basis. The specific elements of Christianity are not something I'm a huge believer in.