The inventory, the value of my company, walks out the door every evening.

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.

I think it makes sense to believe in God, but exactly what decision in your life you make differently because of it, I don't know.

I would counsel people to go to college, because it's one of the best times in your life in terms of who you meet and develop a broad set of intellectual skills.

Innovations that are guided by smallholder farmers, adapted to local circumstances, and sustainable for the economy and environment will be necessary to ensure food security in the future.

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.

The death of a child is an incredible tragedy all over the world. Back in 1990, about 12 percent of children were dying before they reached the age of 5.