Learning from mistakes and constantly improving products is a key in all successful companies.

There's always a tricky issue when you get into stolen material or pornography. The laws for online publishing the same as for print-based publishing, where if you're hosting certain types of things and somebody notifies you about that.

Ninety percent of the cases of polio are in security-vulnerable areas.

I think it's fair to say that personal computers have become the most empowering tool we've ever created. They're tools of communication, they're tools of creativity, and they can be shaped by their user.

I would certainly use my voice to try and avoid anything that undermines confidence, so that parents are using vaccines fully.

No one person controls Microsoft. The board and the shareholders decide whether they want to have me as CEO.

Well depending on the government, you either work through the government, which is ideal, because then you're strengthening their capabilities, or you work through the non-governmental organizations. It's never easy, and you know, it's just about the very basics of health. This is not hospitals. This is just primary health care [in Africa], the most simple things, and even so, getting the supplies out, getting the trained workers there.