In low-income countries, the main problems you have is infectious diseases.

One thing people underestimate is how markets don't allow anyone to do anything except make better and better products. There's not much leeway. The world is a lot more competitive than most people think, particularly in a high-technology area. If a company takes its eye off improving its products, if it tries to do anything that would be viewed as an exercise of power, it'll be displaced very rapidly.

The world has been very careful to pick very few diseases for eradication, because it is very tough.

Playing Bridge is a pretty old fashioned thing in a way that I really like. I was watching my daughter ride horses this weekend and that is also a bit old fashioned but fun. I do the dishes every night - other people volunteer but I like the way I do it.

I mean, if we said right now, there's somebody in the next room who's dying, let's all go save their life, you know, everybody would just get up immediately and go get involved in that.

Technology must be implemented as part of a thoughtful, holistic approach to education transformation that includes teacher training, relevant curricula, parental involvement, and programs for children that fill unmet needs for basics like nutrition and health care.

Certainly I'll never be able to put myself in the situation that people growing up in the less developed countries are in. I've gotten a bit of a sense of it by being out there and meeting people and talking with them.