The world today has 6.8 billion people...that's headed up to about 9 billion. If we do a really great job on vaccines, health care, reproductive health services, we could lower that by perhaps 10 to 15 percent.

As we look ahead into the next century, leaders will be those who empower others.

Microsoft is involved in setting some fairly key standards and people are afraid of it because they think, Geez, they are quite capable. It's daunting, I suppose.

You know capitalism is this wonderful thing that motivates people, it causes wonderful inventions to be done. But in this area of diseases of the world at large, it's really let us down.

Some people, through luck and skill, end up with a lot of assets. If you're good at kicking a ball, writing software, investing in stocks, it pays extremely well.

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

By helping us to be more productive, technology lets us to spend less time focusing on survival, and more on solving other challenges.