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.

Whenever you have war, you often have more deaths because the medical system and the food system breaks down, than you have directly through violence.

Really advanced civilization is based on advances in energy.

We make the future sustainable when we invest in the poor, not when we insist on their suffering.

In business, the idea of measuring what you are doing, picking the measurements that count like customer satisfaction and performance... you thrive on that.

Talking to mothers, always brings it home because they're so anxious to do everything they can for their kids and so tragic for them.

The most important work I got a chance to be involved in, no matter what I do, is the personal computer... I even knew not to get married until later because I was so obsessed with it. That's my life's work.