So we can simulate Richter-10 earthquakes. We simulate 70-foot waves coming into these things. Very cool. We basically say no human should ever be required to do anything, because if you judge by Chernobyl and Fukushima, the human element is not on your side.

I'm certainly well taken care of in terms of food and clothes ... Money has no utility to me beyond a certain point. Its utility is entirely in building an organization and getting the resources out to the poorest in the world.

Technology is just a tool. In terms of getting the kids working together and motivating them, the teacher is the most important.

Setting clear goals and finding measures that will mark progress toward them can improve the human condition.

Whenever you have a few setbacks, the idea that half as many children are dying now as back in 1990 and so... it was over 12 million a year, now it's less than 6 million a year. We have a clear path to get that under 3 million a year and we know what to do. And this generation of young Africans is a very large group.

I studied every thing but never topped.... But today the toppers of the best universities are my employees

There were a lot of missteps in the early days, but because we got in early we got to make more mistakes than other people.