When were you born, who are your parents, where did you grow up? None of us earns these things. These things were given to us. So when we strip away all of our luck and our privilege, and we consider where we'd be without them, it becomes much easier to see someone who's poor and say, "That could be me." And that's empathy.

All lives have an equal value.

In different places you run into myths around vaccination or around family planning. In the United States, one of the myths that existed for a long time, that has been completely debunked, was that autism was linked to a vaccine.

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

[Bill Gates] wanted me to stay working at Microsoft, but I didn't think he could be CEO and we could have the family life that we both had growing up, which is what we envisioned. I knew I would go back to work at some point later to some profession. I just didn't know what.

Around the world we have girls in primary school at about the same rate now as boys, but keeping them in quality secondary schools is where the world is lagging. I'm seeing a lot of countries look at this now.

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