The key thing you can do to reduce population growth is actually improve health.

If your business is not on the Internet, then your business will be out of business.

Now everyone takes it for granted that you can look up movie reviews, track locations, and order stuff online. I wish there was a way we could take it away from people for a day so they could remember what it was like without it.

There's only one trick in software, and that is using a piece of software that's already been written.

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.

in china when you're one in a million, there are 1300 people just like you

Climate change is a terrible problem, and it absolutely needs to be solved. It deserves to be a huge priority.