It's the poorer people in tropical zones who will get really hit by climate change - as well as some ecosystems, which nobody wants to see disappear.

Robotics and other combinations will make the world pretty fantastic compared with today.

In K-12, almost everybody goes to local schools. Universities are a bit different because kids actually do pick the university. The bizarre thing, though, is that the merit of university is actually how good the students going in are: the SAT scores of the kids going in.

I'm a big believer that as much as possible, and there's obviously political limitations, freedom of migration is a good thing.

Instead of buying airplanes and playing around like some of our competitors, we've rolled almost everything back to the company.

It is hard to smash a computer when you're laughing.

What destroys more self-confidence than any other educational thing in America is being assigned to some remedial math when you get into some college, and then it's not taught very well and you end up with this sense of, 'Hey, I can't really figure those things out.'