" pervasive pattern of grandiosity (in fantasy or behavior), need for admiration, and lack of empathy . . . , indicated by five (or more) of the following: 1. An exaggerated sense of self-importance . . . 2. Preoccupation with fantasies of unlimited success, power, brilliance, beauty, or ideal love 3. Believes that he or she is “special” and can only be understood by, or should associate with, other special or high-status people . . . 4. Requires excessive admiration 5. Has a sense of entitlement . . . 6. Selfishly takes advantage of others to achieve his or her own ends 7. Lacks empathy 8. Is often envious of others or believes that others are envious of him or her 9. Shows arrogant, haughty, patronizing, or contemptuous behaviors or attitudes "

― Jon Krakauer , Under the Banner of Heaven: A Story of Violent Faith