An intelligent sociopath can learn the rules about what's good and what's bad, what people see as good and bad. But they don't get that intervening sense of guilt, that pang of conscience, on account of it. So they tend to know what's wrong or right, they just don't care. That's another thing that they can use against us: that we do care. We're predictable in that.

Controlling others—winning—is more compelling than anything (or anyone) else.

Even famous people - are most concerned of all with what people who are close to them think. And the sociopath is generally not concerned with that at all.

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.

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.

The most reliable sign, the most universal behavior of unscrupulous people is not directed, as one might imagine, at our fearfulness. It is, perversely, an appeal to our sympathy.

Another thing that's fun for sociopath is speed, literal speed, going very fast in your car. Not that everybody who goes fast in their car is a sociopath, by any means, but anything that gives you a rush will lessen your sense of boredom.