The reputation of the Marquis de Sade is well-founded. The experience of reading his works is demanding to an extreme. Violence and sexuality appear on almost every page, and these descriptions are interspersed with extended discourses on materialism, atheism, and crime. In this bold and rigorous study William S. Allen sets out the context and implications of Sade's writings in order to explain their lasting challenge to thought. For what is apparent from a close examination of his works is the breadth of his readings in contemporary science and philosophy, and so the question that has to...