In order for ego to function vigorously, conflict is necessary. This, of course, requires enemies. (Super-inflated egos curate actual lists of enemies.) When Jesus said, “Forgive your enemies,” he meant, Have no enemies.
Men who love themselves do not contradict (from the Latin for speak against) themselves. Self-criticism is truly the grievous error. Many have perished out there, on the hot sands of their own contempt.