There's no magic line between an application and an operating system that some bureaucrat in Washington should draw.

You can be a business thinker.

Whenever you have a few setbacks, the idea that half as many children are dying now as back in 1990 and so... it was over 12 million a year, now it's less than 6 million a year. We have a clear path to get that under 3 million a year and we know what to do. And this generation of young Africans is a very large group.

Until we're educating every kid in a fantastic way, until every inner city is cleaned up, there is no shortage of things to do.

Historically, privacy was almost implicit, because it was hard to find and gather information. But in the digital world, whether it's digital cameras or satellites or just what you click on, we need to have more explicit rules - not just for governments but for private companies.

The AIDS is a disease that is hard to talk about.

Money has no utility to me beyond a certain point.