I'm a slave to my dogs and go out with them almost every day. They are poorly behaved if they don't run. They really act up.

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.

For my senior prom, my father finally said I could go - as long as I was home by 9pm! That was around the time that most people were heading out. When I was little I was so mad at them all the time. Why can't I do this? Why are there so many rules? But looking back now, my parents gave me the foundation to have so many choices in life.

A Western upbringing tends to stress questioning authority, which is always asking why, why, why.

I worry that by losing my temper so much and being so harsh and yelling so much that, by example, I will have taught my daughters to be that way, and I'm now constantly telling them not to do that.

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.

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.