People in business understand paying money to be more efficient. You can bootstrap markets where the devices are too expensive at first because these are so valuable to some people.

I can understand wanting to have a million dollars but once you get beyond that, I have to tell you, it's the same hamburger.

Success is a miserable teacher. It tempts intelligent people to believe they cannot lose. And it is an unreliable guide to the future.

The key thing you can do to reduce population growth is actually improve health.

China and the U.S. need each other very badly. Yes, we should argue about some things, but it's not an 'us versus them,' it's an 'us and them' type scenario.

The human body is the most complex system ever created. The more we learn about it, the more appreciation we have about what a rich system it is.

Two out of every five people on Earth today owe their lives to the higher crop outputs that fertilizer has made possible.