Teaching is a very effective way to get children to learn something specific - this tube squeaks, say, or a squish then a press then a pull causes the music to play. But it also makes children less likely to discover unexpected information and to draw unexpected conclusions.

There is a tension between our desire to get our kids to turn out a particular way versus letting them develop to be their own person. If there were a pill that would make my child turn out the way I wanted, I'm not sure I'd take it.

Children are the most amazing thing in the universe, as far as I'm concerned. If you're worrying about how it's going to turn out, you aren't experiencing that day-to-day satisfaction of being with these incredible, extraordinary creatures. Every single one of them is the most incredible, extraordinary creature that you're ever going to want to see. I think the joy of having that deep relationship - that's the core of what being a parent is.

The youngest children have a great capacity for empathy and altruism. There's a recent study that shows even 14-month-olds will climb across a bunch of cushions and go across a room to give you a pen if you drop one.

One of the most distinctive evolutionary features of human beings is our unusually long, protected childhood.

Caring, whether for children or the dying, shouldn't be instrumental. It should be an intrinsic, moral good.

The best scientific way to discover if one factor influences another is to do a controlled experiment.