Imagine, just for the sake of discussion, that you had a few hours a week and a few dollars a month to donate to a cause - and you wanted to spend that time and money where it would have the greatest impact in saving and improving lives. Where would you spend it?

Humanity’s greatest advances are not in its discoveries – but in how those discoveries are applied to reduce inequity.

I don't have any TVs with their over-the-air receivers connected in my house. But when I'm in a hotel room or other places that have a TV, then I turn it on and flip the channels just like everybody else. I'm not immune to the lures of television. I just try to stay away from it because I like to read.

Every day were saying, 'How can we keep this customer happy?' How can we get ahead in innovation by doing this, because if we don't, somebody else will.

I believe that if you show people the problems and you show them the solutions they will be moved to act.

Take our 20 best people away, and I will tell you that Microsoft will become an unimportant company

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.