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.

When Ford sells a car, a dealer isn't allowed to take out the engine and put a different one in. When a newsstand sells the Washington Post, no one can go to the newsstand and pay them to rip out the classified section and put their own classified section in - if they could, they would do so.

China is certainly an important player in the global economy, and a widespread AIDS epidemic would threaten that growth.

Even with cameras being very cheap, one thing that researchers noticed was that you look really bad in a videoconference image because the lighting is bad and you get shadows and things.

I actually thought that it would be a little confusing during the same period of your life to be in one meeting when you're trying to make money, and then go to another meeting where you're giving it away. I mean is it gonna erode your ability, you know, to make money? Are you gonna somehow get confused about what you're trying to do?

Often you just have to rely on your intuition.

Governments will always play a huge part in solving big problems. They set public policy and are uniquely able to provide the resources to make sure solutions reach everyone who needs them. They also fund basic research, which is a crucial component of the innovation that improves life for everyone.