There are cognitive processes and limbic reactions associated with basic emotions. And you can change brain chemistry, but you're still not going to change memories and experiences in a human being.

There's every reason to think SSRIs blunt your ability to fall and stay in love.

I can't conceive of caring more about my president than my own partner.

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.

There were real reasons that you were attracted to somebody originally. The brain doesn't pick willy-nilly. Unless you part ways hating each other for some reason, that mechanism could get triggered again. You can literally fall in love again.

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.

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.

A lot of people head into courtship looking for fireworks. Don't pass up a chance by dumping someone after a first date because you don't feel the fireworks. The fireworks can happen at any time and be maintained.

Office romances are few, short, and not usually destructive.

Since when is anyone truly honest with anyone?

In America, we are demanding everything from our marriage.

When people tell you to walk a certain way, it's like not thinking of a purple tomato. You can't not do it.

A woman will toss her head and a man will say, 'Oh she's trying to pick me up,' when in fact she's not doing that at all. So, women actually have to be a little careful with what they do, because men will pick up things that they didn't mean.

Women are better at reading body language everywhere in the world. As a matter of fact, it's associated with the female hormone estrogen. Women are better at figuring out of tone of voice, reading your face and posture and gesture.

As women in industrial societies join the paid workforce, they gain the economic means to depart unhappy marriages more easily.

Women are naturally prone to compete over their mates.

Men want to think women don't cheat, and women want men to think they don't cheat, and therefore the sexes have been playing a little psychological game with each other.

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

When you fight, anger drives up testosterone in both men and women.

In that early-love stage, you're in that state of exhilaration. You talk till dawn. You become obsessed with 'What does he think?' 'Does he like me?' 'Does he think I'm fat?'

More and more of us live segmented, compartmentalized lives. This isn't natural. For millions of years, our forebears knew everyone around them and everyone knew them.

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.

We evolved in a tropical climate where the smells of plants and flowers were all around us. We spent a lot of time in the trees with a lot of sunlight and no clothes.

People have been looking for love potions since hunter-gatherer societies.