In low-income countries, getting to a health post is hard. It's very expensive.

Certainly there's a phenomenon around open source. You know free software will be a vibrant area. There will be a lot of neat things that get done there.

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.

There's nobody getting rich writing software that I know of.

The inventory, the value of my company, walks out the door every evening.

Going out in the field, it's always enlightening to see what's working and what's not and to sit down and talk - I was with young girls in south Africa - understanding why our tools for prevention aren't being adopted, and what way may need to invent to help protect them.

Common Core is a big win for education.