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

If Africa seeks prosperity, it must provide for the health and nutrition of all – including the poorest.

This social-networking thing takes you to crazy places.

Certain teams are more careful in what they write. They generate less bugs. You can know that but it still doesn't mean there might be there might not be one bug that would be bad to ship the product with.

We need to start thinking about the future of food if we are going to feed 9 billion people in a way that does not destroy our environment.

Typically, your corporate e-mail account is not, today, that spam-targeted. It's more the free e-mail accounts that are spam-targeted.

...one of the most inventive forms of creative capitalism involves someone we all know very well. A few years ago, I was sitting in a bar here in Davos with Bono. Late at night, after a few drinks, he was on fire, talking about how we could get a percentage of each purchase from civic-minded companies to help change the world. He kept calling people, waking them up, and handing me the phone to show me the interest.