With world health, every life you save is a wonderful thing, so it's not this question of whether you solve it or you don't. The chance of completely solving the problems has long odds. But really, the thing is that you get to save the first child, the second child, the third child. You can just feel good about that.

When you revolutionize education, you're taking the very mechanism of how people be smarter and do new things, and you're priming the pump for so many incredible things.

Teaching is the human thing, in terms of building the kids' self-confidence, so if we take the broad ways that we want to see society to be better, science can only provide certain pieces of that.

The Green Revolution focused on the big three - maize, rice and wheat - and the Green Revolution did not adapt the big three to African conditions, other than South Africa, as much as they should have.

A company needs to have good business reflexes, to be able to marshal its forces in a crisis or in response to any unplanned event.

I believe that the world will be a safer place if there is enough food to go around, that it will be a more stable place if children grow up with opportunities instead of frustrations. Furthermore, I can only assume that if the United States plays a role in helping to create prosperous societies, we will have friends to call on in times of need.

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.