We start with an economic approach. We look at what are the greatest causes of death in the developing world, and what causes the largest amount of disability, which would prevent you from getting a job. A lot of those deaths start with diseases, diseases we don't get in such a great number in the United States.

I'm happy we have three healthy children and we'll stay with three healthy children.

If you can't go to secondary school, the boys get to go and the girls don't, you're locked into a cycle of poverty, because you don't have a chance.

Like in Africa, if somebody doesn't have fuel, they're still going and collecting firewood. If they get an oven, that's a huge difference. You can do things to reduce the inequities by making sure that they can get clean energy, safe energy. To make sure they're not having to collect water every day. That's huge for women in the developing world.

It is still just unbelievable to us that diarrhea is one of the leading causes of child deaths in the world.

Women around the world should have a tool that helps them plan their pregnancies.

If you want to lift up an economy in Africa, you basically start with the women.