I'm quite worried about the fiscal imbalances that we've got and what that might mean in terms of financial crisis ahead.

When Paul Allen and I started Microsoft over 30 years ago, we had big dreams about software. We had dreams about the impact it could have.

I didn't completed my University Education

Don't let complexity stop you. Be activists. Take on the big inequities. It will be one of the great experiences of your lives.

I've always been interested in science - one of my favourite books is James Watson's 'Molecular Biology of the Gene.'

AIDS we're - most of these diseases - we are down from the peak. We're down about 40 per cent from the peak and if we got the right vaccines, which are at the early stage of discovering, then the numbers would come down very dramatically. So that's why we talk about it as an emergency.

The media covers what’s new – and millions of people dying is nothing new. So it stays in the background, where it’s easier to ignore. But even when we do see it or read about it, it’s difficult to keep our eyes on the problem. It’s hard to look at suffering if the situation is so complex that we don’t know how to help. And so we look away.