We spend our lives trying to get along with people so we can keep our jobs, keep our marriages together, so that we can raise our kids properly.

A Rolex watch or an expensive car are the things guys often use to show status, wealth, and basic desirability.

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

Romantic love is an obsession. It possesses you. You lose your sense of self. You can’t stop thinking about another human being.

Any kind of novelty or excitement drives up dopamine in the brain, and dopamine is associated with romantic love.

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

A world without love is a deadly place.

Sometimes we fall in love with somebody who will probably never love us, for reasons having nothing to do with us but with their own mindset, their chemistry.

We're not very dangerous animals; we don't have a horn like a rhino or quills like a porcupine.

Barriers tend to intensify romance. It's called the 'Romeo and Juliet effect.' I call it 'frustration attraction.'

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.

An individual is no match for history.

Even though I know that breaking your brain is the same as breaking your arm, I'm still ashamed that my brain is broken.

A lie would have no sense unless the truth were felt as dangerous.

You can want and hope, or you can make it happen.

Patriotism, often a thinly veiled form of collective self-worship, celebrates our goodness, our ideals, our mercy and bemoans the perfidiousness of those who hate us.

We want to build colonies on the Moon, Mars, the Moons of other planets, and even nearby asteroids. We want to make space tourism and commerce routine.

That the sun shines tomorrow is a judgement that is as true as the contrary judgement.

And then he tells her stories. Myths he learned from his instructor. Fantasies he created himself, inspired by bits and pieces of others read in archaic books with crackling spines.

I've conducted an experiment on my kids. Instead of denying them access to media, I've encouraged it. They read comic books, play Nintendo and watch way too much TV.

Now, have I ever been tempted to break into a Krispy Kreme doughnut store in the middle of the night? Oh, yeah. God help us if I had a mini-bar stocked with cheesecake and chicken-fried steak.