If we don't empower women, we don't allow them to unlock the potential of themselves and their children.

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

Birth control has almost completely and totally disappeared from the global health agenda, and the victims of this paralysis are the people of Sub-Saharan Africa and South Asia.

We [with Bill Gates] started to make decisions about what we'd invest in. Then I actually started traveling for the foundation. I've probably been to India now eight times at least and Africa numerous times.

I went to business school, and I went straight from that to a nine-year career at Microsoft. Eventually, I ran a big chunk of the consumer products division for Microsoft.Then I left with the birth of our first daughter because Bill and I both wanted to have a few kids.

Abortion has become a very politicised issue that I think countries have to work out themselves. In a lot of countries, people can't even yet agree on what their laws should be.

In places like India with smartphones, there's an app now for women if they're in a violent situation, they can press one button. They've given their cell-phone number to five trusted friends, and right away their GPS location goes out: "Here I am."