When you're in the throes of this romantic love, it's overwhelming - you're out of control, you're irrational, you're going to the gym at 6 A.M. every day - Why? Because she's there.

Romantic love is an addiction: a perfectly wonderful addiction when it's going well, and a perfectly horrible addiction when it's going poorly.

There exists no culture in which adultery is unknown, no cultural device or code that extinguishes philandering.

Mothers really were not built to raise babies not only by themselves, but with only a partner. For millions of years, a woman had much more than just her husband to help rear her young... This whole idea of 'it takes a village to raise a child' is exactly how we're supposed to live.

We all have restlessness in long-term relationships.

Keep an open heart. We are wired to find love.

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.