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

There's all kinds of reasons that you fall in love with one person rather than another: Timing is important. Proximity is important. Mystery is important. You fall in love with somebody who's somewhat mysterious, in part because mystery elevates dopamine in the brain, probably pushes you over that threshold to fall in love.

For so many generations, a woman's only career path was to marry well and to marry up. Those days have changed.

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

Liberals and conservatives are looking for entirely different things. Their attitudes toward romance and how they court are really dramatically different. There's almost no overlap.

You've got to remember that men are men and women are women. And although a lot of similarities, there are some real differences.

The main characteristics of romantic love are craving: an intense craving to be with a particular person, not just sexually, but emotionally.