The brain was not built to walk into a bar, where you know nobody, and start a conversation. That's not the way humanity has courted.

Until recently, we regarded love as supernatural. We were willing to study the brain chemistry of fear and depression and anger but not love.

The human brain is built to compare; it's Darwinian to consider an alternative when one presents itself.

Women like signs of money and education - things that indicate that not only is this guy going to have some resources, but he's also willing to share them.

There is more and more data indicating that there is a biological basis to your political views.

The Internet lets women use words, which is their natural tool. Little girls speak in more complex, grammatical sentences than little boys do, and women never lose that superiority in verbal ability.

You can really get poked in the back and not feel it very much, but just a feather around your lips and you really do feel it.