Adults often assume that most learning is the result of teaching and that exploratory, spontaneous learning is unusual. But actually, spontaneous learning is more fundamental.

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

The radio was an improvement on the telegraph but it didn't have the same exponential, transformative effect.

The brain is highly structured, but it is also extremely flexible. It's not a blank slate, but it isn't written in stone, either.

Adults tend to think they have much free will. Kids younger than six are less sure. They may be more realistic!

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's it like to be a baby? It's like being in love in Paris for the first time after you've had three double espressos.