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?

The Romans thought of themselves as the chosen people, yet they built the greatest army on Earth by recruiting warriors from any background.

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.

My dogs can't do anything--and what a relief. I don't make any demands of them, and I don't try to shape them or their future. For the most part, I trust them to make the right choices for themselves. I always look forward to seeing them, and I love just watching them sleep. What a great relationship.

There's nothing better for building confidence than learning you can do something you thought you couldn't.

Unlike Western parents, reminding my child of Lord Voldemort didn't bother me.

As a purely mathematical fact, people who sleep less live more.