Where does evil come from?

There are a lot of mental health professionals who would tell you that there’s some kind of a biological or genetic predisposition to this kind of behavior, or developing this kind of personality disorder – I tend to doubt that. I think that the fact is that what we call psychopaths or antisocial personality disorder or sociopaths — which are really all the same thing — are not born, but are made. The thing is, different individuals do have different temperaments certainly, and so there can be temperamental differences. And these differences influence how a child or an adolescent deals with these kinds of situations and how they cope with it.