Forbidden Knowledge: From Prometheus to Pornography  

"So described, Faust's attitude of self-gratification resembles that of many characters in the novels of a French author writing during the same revolutionary period. One could read the heinous episodes of the Marquis de Sade's Juliette as a violently dehumanized caricature of Faust. Having made a semiwager to outshine and outperform her virtuous sister, Justine, Juliette conquers Europe by abandoning all constraints, all scruples, and all feelings. And the gods favor her triumph by destroying her victimized sister with a symbolic bolt of lightning. I shall deal further with Sade in Chapter VII."-- Forbidden Knowledge: From Prometheus to Pornography (1994) by Roger Shattuck