The only definition by which Americas best days are behind it is on a purely relative basis.

Some very poor countries run great vaccination systems, and some richer ones run terrible programs.

People don't want lots and lots of single purpose devices. They do not want to have to learn how to set up something for photos, another thing for music, another thing for video.

The two areas that are changing... are information technology and medical technology. Those are the things that the world will be very different 20 years from now than it is today.

Lectures should go from being like the family singing around the piano to high-quality concerts.

Contrary to popular belief, I don't spend a whole lot of time following soccer. But as I have traveled around the world to better understand global development and health, I've learned that soccer is truly universal. No matter where I go, that's what kids are playing. That's what people are talking about.

Innovation is moving at a scarily fast pace.