The key thing you can do to reduce population growth is actually improve health.

The next big invention that will change the way we live should be things like ways of generating energy like electricity.

Windows 8 is key to the future, the Surface computer.

The most amazing philanthropists are people who are actually making a significant sacrifice.

Well the Global Fund, because of how well it's worked on not only AIDS, but also malaria and tuberculosis, I'd say it's well accepted. I mean, it's not politically controversial that this is a great humanitarian effort. But budgets are very very tight.

Microsoft does not dominate the software industry by any stretch of the imagination. We have lots of very able competitors who keep us constantly vigilant, and sometimes they beat us to the punch. Microsoft's success to date is based solely on the fact that people like Microsoft software.

I think any statement about stock prices is always suspect unless it's made by Warren Buffett.