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

You read a bunch of books and you get a bunch of how-tos, and you take a bunch of classes and you learn a bunch of techniques. You set yourself goals and benchmarks. I think people have imported that into their experience of taking care of children.

We fear death so profoundly, not because it means the end of our body, but because it means the end of our consciousness - better to be a spirit in Heaven than a zombie on Earth.

What teenagers want most of all are social rewards, especially the respect of their peers.

Becoming an adult means leaving the world of your parents and starting to make your way toward the future that you will share with your peers.

Owning our past allows us to own our future.

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.