To learn to be charming is fairly easy - you can teach somebody to be charming and to learn human emotions - or to learn the behaviors that go with human emotions. A sociopath, a smart one, will study the way we emote, and will learn how to do that quite effectively.

Conscience is the still small voice that has been trying since the infancy of our species to tell us that we are evolutionarily, emotionally, and spiritually One, and that if we seek peace and happiness, we must behave that way.

I think con man is the usual term. When somebody comes on television to tell a lot of needy people that God will send them to heaven if they send him $200, if that's not downright sociopathic, it's close.

Conscience is a creator of meaning. As a sense of constraint rooted in our emotional ties to one another, it prevents life from devolving into nothing but a long and essentially boring game of attempted dominance over our fellow human beings, and for every limitation conscience imposes on us, it gives us a moment of connectedness with an other, a bridge to someone or something outside of our often meaningless schemes.

People ask me many times, "Aren't you afraid you're going to scare people? Aren't you afraid you're going to make people feel bad about the human race?" I look at it as entirely the opposite. Something you can understand and identify should be less frightening than something you can't. And to understand that there are people who are capable of acting without conscience, without considering other people at all, explains a lot of things.

I was once doing a book signing and a man came up to me and said that he gave classes to people who'd been convicted of drunken driving twice. He said he felt that nearly all of those people were what I was describing as sociopathic. Which makes a great deal of sense to me. We always talk about how could you possibly, knowing that you're drunk, get behind the wheel of a car again and do that? Well, you could if you didn't give a half a damn what happened.

Most of who we are is our deepest emotions, and someone who cannot feel those emotions in a positive way is never going to understand much about his fellow human beings.