Microsoft looks at new ideas, they don't evaluate whether the idea will move the industry forward, they ask, 'how will it help us sell more copies of Windows?

By improving health, empowering women, population growth comes down.

You might say, well, aren't people saying that about wind and solar today? Not really. Only in the super-narrow sense that the capital costs per output, when the wind is blowing, is slightly lower.

Understanding science and pushing the boundaries of science is what makes me immensely satisfied.

Looking at these issues as a businessman, I believe that investing in the world's poorest people is the smartest way that our government spends money.

There are websites that any government wants to block. The truth about the Internet is that it's extremely hard to block anything - extremely hard. You'll never get perfect blocking.

If I think something's a waste of time or inappropriate I don't wait to point it out. I say it right away. It's real time. So you might hear me say 'That's the dumbest idea I have ever heard' many times during a meeting.