The most dangerous person in any room is not the one who is openly aggressive, selfish, or cruel. It is the person who is certain that they are none of those things. The person who has fully convinced themselves of their own goodness, who genuinely cannot see their capacity for harm, who would be shocked and offended by the suggestion that they contain anything worth examining critically. This person’s aggression, selfishness, and cruelty do not disappear because they are unacknowledged. They operate freely and without supervision, because the owner has permanently turned their back. This is the Shadow problem as...