We need to start thinking about the future of food if we are going to feed 9 billion people in a way that does not destroy our environment.

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

Understanding science and pushing the boundaries of science is what makes me immensely satisfied.

I have $100 billion... You realize I could spend $3 million a day, every day, for the next 100 years? And that's if I don't make another dime.

Sometimes we do get taken by surprise. For example, when the Internet came along, we had it as a fifth or sixth priority. It wasn't like somebody told me about it and I said, "I don't know how to spell that." I said, "Yeah, I've got that on my list, so I'm okay." But there came a point when we realized it was happening faster and was a much deeper phenomenon than had been recognized in our strategy.

I work hard because I love my work.

I meet people overseas that know five languages - that the only language I'm comfortable in is English.