Men make different investments than women do. Women tend to invest more of their earnings than men do in their family's well-being - as much as 10 times more.

If you ask, who has the chance to move into the city and get a good job out in the developing world? It's a man. Who's left to care for the kids back at home? The woman is.

What great changes have not been ambitious?

You are indebted to life until you help some less fortunate person, just as you were helped.

Vaccines are a miracle cure. Eight out of 10 children are getting vaccines.

Now we just really need to do the work, which we're doing, to get contraceptives out to women worldwide.

I think the Americans need to understand that a lot of times the children are bored in school, and that is why they are not staying in.