There's more than one person on the planet. When you're madly in love, that's not what you think.

After a man falls madly in love, he no longer cares how old she is.

I think romantic love evolved to enable you to focus your mating energy on just one individual at a time, thereby conserving mating time and energy.

The reason you take antidepressants is to feel calm. And romantic love is not calm - it's elation, it's mood swings, and you're killing all that when you take the drug.

Of all the foods we share, there is nothing more primordial than meat. It's no surprise that meat-eaters still want a partner who will give, receive and share this primordial symbol of a budding partnership.

Romantic love allows you to focus mating energy. Attachment sustains that relationship as long as necessary to raise your baby.