So we do software for watches, for phones, for TV sets, for cars. And some of these take a long time to catch on.

If somebody is considering being willing to go out and work in the field in global health, those are a particular class of heroes because it's hard to work in those places. Our foundation gets so many of our learnings from people who've been out there and seen, "this tool is not going to work there, there's more of a problem here than you know." You should really get involved in that.

Today, you always know whether you are on the Internet or on your PC's hard drive. Tomorrow, you will not care and may not even know.

I understand how every healthy child, every new road, puts a country on a better path, but instability and war will arise from time to time, and I'm not an expert on how you get out of those things.

I have $100 billion... You realize I could spend $3 million a day, every day, for the next 100 years? And that's if I don't make another dime.

The Chinese are clearly inculcating the idea that science is exciting and important, and that's why they, as a whole-they're graduating four times as many engineers as we are, and that's just happened over the last 20 years.

I meet people overseas that know five languages - that the only language I'm comfortable in is English.