I've for some reason or other... never met Donald Trump.

Whenever you have a few setbacks, the idea that half as many children are dying now as back in 1990 and so... it was over 12 million a year, now it's less than 6 million a year. We have a clear path to get that under 3 million a year and we know what to do. And this generation of young Africans is a very large group.

Finding information is either a software question or a question of how much information is online.

If I only had two dollars left I would spend one dollar on PR.

China and the U.S. need each other very badly. Yes, we should argue about some things, but it's not an 'us versus them,' it's an 'us and them' type scenario.

People who say they don't see the acceleration of innovation is a wilful blindness. We are innovation at a wonderful speed for the basic things we think everyone should get.

I spend a lot of time reading.