The name of the Marquis de Sade is synonymous with the blackest corners of the human soul, a byword for all that is foulest in human conduct. In his bleak, claustrophobic universe, there is no God, no morality, no human affection, and no hope. Power is given to the strong, and the strong are murderers, torturers, and tyrants. No quarter is given; compassion is the virtue of the weak. Yet Sade wa...