" He can pretend convincingly, but is never an actual friend to anyone and cannot feel even a small amount of genuine concern for his fellow human beings. He cannot love or feel authentic concern for his family members, though he may claim to have these feelings. He has no real interest in bonding with a mate; if he marries, the union will be loveless, one-sided, and almost certainly short-term. If his spouse has any value to him, it will be because he views her as a possession, one he may feel angry to lose, but never genuinely sad. Should he become a father, he will not be able to love even his children. "

― Martha Stout ,