Is the rich world aware of how four billion of the six billion live? If we were aware, we would want to help out, we'd want to get involved.

The human body is the most complex system ever created. The more we learn about it, the more appreciation we have about what a rich system it is.

There's a lot that can be done for people who are using technology in a better way.

Why do people benefit in inverse proportion to their need? Well, market incentives make that happen.

The idea of explaining why free trade is good, why immigration is good, why the world is so connected, that we need to think in terms of humanity and being generous to each other, you know, that's proving to be a challenge.

Good developers like seeing their products sell in large quantities. They enjoy the competition of doing a better job than the other company, especially if the other company has more people on the project and they're entrenched and people are saying that we don't have a chance of getting in there and... and doing well.

India has over 20 percent of the kids born in the world. And they move around a lot.