I see my upbringing as a great success story. By disciplining me, my parents inculcated self-discipline. And by restricting my choices as a child, they gave me so many choices in my life as an adult. Because of what they did then, I get to do the work I love now.

Happiness is not always through success. Equally, the constant pursuit of success is sure unhappiness. But we have to find the balance. My own thoughts are that parenting is very personal. And we all feel enormous insecurity about parenting. What are they going to think of us 20 years down the line?

Never complain or make excuses. If something seems unfair, just prove yourself by working twice as hard and being twice as good.

Everything I've ever done that's valuable is something I was afraid to try.

The Chinese model calls for giving your kids very little choice - and I've come to see that you can go too far with that. On the other hand, I also believe that Western parents sometimes give their young kids too much choice.

Western parents worry a lot about their children's self-esteem. But as a parent, one of the worst things you can do for your child's self-esteem is to let them give up. On the flip side, there's nothing better for building confidence than learning you can do something you thought you couldn't.

Once you get to the Enlightenment, the way that powers get to be hyperpowers isn't just by conquest. It's through commerce and innovation. Societies like the Dutch Republic and the United States used tolerance to become a magnet for enterprising immigrants.