The Cathars were members of a Christian sect that flourished in France in the 12th and 13th centuries. Because most adherents believed in reincarnation—as opposed to resurrection—as a way of reaching the pure spirit realm, the Roman Catholic Church regarded the sect as heretical and launched the Albigensian Crusade to crush the movement. In one account of a massacre of some 20,000 Cathars, one of the crusade’s commanders is asked how to tell Cathars from Catholics. What was his famous reply? Discuss