Success is a lousy teacher. It seduces smart people into thinking they can't lose.

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.

About three million computers get sold every year in China, people don't pay for the software. Someday they will, though. And as long as they're going to steal it, we want them to steal ours. They'll get sort of addicted, and then we'll somehow figure out how to collect sometime in the next decade.

AIDS itself is subject to incredible stigma.

Exposure from a young age to the realities of the world is a super-big thing.

Even with cameras being very cheap, one thing that researchers noticed was that you look really bad in a videoconference image because the lighting is bad and you get shadows and things.

I believe technology will continue to become more affordable and more people will have the chance to use it. This will help more people get medical care and a good education.