Employers have decided that having the breadth of knowledge that's associated with a four-year degree is often something they want to see in the people they give that job to.

The Green Revolution focused on the big three - maize, rice and wheat - and the Green Revolution did not adapt the big three to African conditions, other than South Africa, as much as they should have.

According to Ethiopian custom, parents wait to name a baby because children often die in the first weeks of life.

Microsoft is always two years away from failure.

You're never going to get the amount of CO2 emitted to go down unless you deal with the one magic metric, which is CO2 per kilowatt-hour.

I think any statement about stock prices is always suspect unless it's made by Warren Buffett.

How much further beyond basic research the role of the government should be, you could have a really good debate about it. Almost nobody would say it's zero. But that's where at least we need the private sector to play a big role.