In most of these things our foundation is a co-funder, so I can say that a polio or an HIV vaccine, that I'm putting our resources behind it in a very big way and the U.S. government would be the best partner for those efforts.

Digital reading will completely take over. It's lightweight and it's fantastic for sharing. Over time it will take over.

Our work in global health is about things like cutting childhood deaths, and every year we continue to make progress there.

If you rely too much on the people in other countries and other companies, in a sense that's your brain and you are outsourcing your brain.

According to Ethiopian custom, parents wait to name a baby because children often die in the first weeks of life.

Living on $6 a day means you have a refrigerator, a TV, a cell phone, your children can go to school. That's not possible on $1 a day.

If something's expensive to develop, and somebody's not going to get paid, it won't get developed. So you decide: Do you want software to be written, or not?