The most successful hyperpowers are the ones where there was actual intermixing. Tang dynasty China was Chinas golden age, and contrary to what I was told when I was growing up, Tang China was founded by a man who by todays standards was no more than half Chinese. It was a mixed-blood dynasty that pulled in "barbarians" from the steppe.

Genghis Khan decreed religious tolerance for all of his conquered peoples. So I think he definitely would approve of our constitutional protections of freedom of religion. I think he would also approve of the way the U.S. has been able to attract talented people from all over the world.

Westerners often laud their children as 'talented' or 'gifted', while Asian parents highlight the importance of hard work. And in fact, research performed by Stanford psychologist Carol Dweck has found that the way parents offer approval affects the way children perform, even the way they feel about themselves.

When I'm not the Tiger Mom, I'm a professor at Yale Law School, and if one thing is clear to me from years of teaching, it's that there are many ways to produce fabulous kids. I have amazing students; some of them have strict parents, others have lenient parents, and many come from family situations that defy easy description.

Chinese parents believe that their kids owe them everything.

I do believe that when your child does poorly on a test, your first step should not necessarily be to attack the teacher or the school's curriculum. It should be to look at the idea that, maybe, the child didn't work hard enough.

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