My youngest sister, Cindy, has Down syndrome, and I remember my mother spending hours and hours with her, teaching her to tie her shoelaces on her own, drilling multiplication tables with Cindy, practicing piano every day with her. No one expected Cindy to get a Ph.D.! But my mom wanted her to be the best she could be, within her limits.

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.

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.

I do play tennis, but I don't really like competition. I'm supposed to be so intense, but I hate competition.

When I was little, my parents really only wanted me to be a scientist or a doctor; they had never even heard of law school. I think even these days if you were to tell your mother you want to be a fashion designer, or an artist or a writer, a lot of Asian parents would be alarmed because they don't think that's a secure career.

A lot of parents today are terrified that something they say to their children might make them 'feel bad.' But, hey, if they've done something wrong, they should feel bad. Kids with a sense of responsibility, not entitlement, who know when to experience gratitude and humility, will be better at navigating the social shoals of college.

But just because you love something, I added to myself, doesn't mean you'll ever be great. Not if you don't work. Most people stink at the things they love.