Success is a miserable teacher. It tempts intelligent people to believe they cannot lose. And it is an unreliable guide to the future.

The nuclear approach I'm involved in is called a traveling-wave reactor, which uses waste uranium for fuel. There's a lot of things that have to go right for that dream to come true - many decades of building demo plants, proving the economics are right. But if it does, you could have cheaper energy with no CO2 emissions.

We all know that there are these exemplars who can take the toughest students, and they'll teach them two-and-a-half years of math in a single year.

Depending on how quickly you get ocean rise, you have people who live in river deltas [at risk].

There are ecosystems like coral reefs [at risk] through ocean acidification. Those are valuable things that we should protect.

The CEO's role in raising a company's corporate IQ is to establish an atmosphere that promotes knowledge sharing and collaboration.

Like a human being, a company has to have an internal communication mechanism, a "nervous system", to coordinate its actions.