Introduction. 1. Definitions. 2. Moral Thinking: The Psychology of Moral Choice Making. 3. No Choice in the Matter: The Brain Substrate for Moral Choice Making. 4. Icons of Evil: Psychopathy and Other Terms of Art. 5. Forensic Psychiatry in the Courtroom: Reducing Agency by Illness? 6. Walking the Via Dolorosa: Psychotherapy with People Who Have Done Evil Things. 7. The Capacity for Cruelty. 8. The Fragility of Goodness: Standing Up for What You Believe In. 9. Conclusion.