The world at large is less inequitable today than at any time in history. Number of people in abject poverty, as a percentage, is at all-time low.

I think that our progress on key diseases over the next several decades is going to be pretty amazing and so I am very interested in that.

Depending on how quickly you get ocean rise, you have people who live in river deltas [at risk]. Bangladesh is largely a river delta, and the rising sea level means that when storms come in, the human sanitation is backing up, the ability to farm, it's destructive-type situations like you saw in New Orleans with Katrina. You're increasing the frequency of that stuff in low-lying areas fairly dramatically.

For a highly motivated learner, it's not like knowledge is secret and somehow the Internet made it not secret. It just made knowledge easy to find. If you're a motivated enough learner, books are pretty good.

Leaders are those who empower others.

That's the part where the governments have a unique role, and then when it progresses well enough, then existing companies or new startup companies should take it. In the $3 trillion a year energy market, the rewards will be quite fantastic.

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.