Until recently, over 98 percent of teachers just got one word of feedback: Satisfactory. If all my bridge coach ever told me was that I was 'satisfactory,' I would have no hope of ever getting better.

In the next 15 years, we can halve childhood deaths. That's doable.

The intersection of law, politics, and technology is going to force a lot of good thinking.

I think that our progress on key diseases over the next several decades is going to be pretty amazing and so I am very interested in that.

I like the idea of putting your Christmas wish list up and letting people share it.

India just went 3 years with no cases [of polio]. Pakistan is our toughest location right now because some parts of the Taliban have not allowed vaccinators to come in and have even attacked vaccinators. We are hopeful this will get resolved since no one wants their kid to be paralyzed. I spend a lot of time making sure the polio campaign is doing the best it can. We have great computer models that help guide our activities.

When you have money in hand,only you forget who are you .But when you do not have any money in your hand,the whole world forget who you are.It's life.