One of my great laments is that education today seems to have... be less about passion and more about process, more about tactic or technique.

We spend the first year of a child's life teaching it to walk and talk and the rest of its life to shut up and sit down. There's something wrong there.

We live on this speck called Earth - think about what you might do, today or tomorrow - and make the most of it.

There is no greater education than one that is self-driven.

Everything we do, every thought we've ever had, is produced by the human brain. But exactly how it operates remains one of the biggest unsolved mysteries, and it seems the more we probe its secrets, the more surprises we find.

In any city with lots of skyscrapers, lots of skyline, the moon seems bigger than it is. It's called the moon illusion.