Women are very attracted to a low voice because it's linked to testosterone, which for millions of years was a sign that men had very good spacial skills and would have been very good at hunting and finding their way back home.

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.

I don’t think we’re an animal that was built to be happy; we are an animal that was built to reproduce.

Globalization requires taking a broad contextual and long-term view.

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.

Anthropologists have found evidence of romantic love in 170 societies. They've never found a society that did not have it.

Scientists know that women gravitate to men who have a different immune system from theirs.