Happiness lies neither in vice nor in virtue; but in the manner we appreciate the one and the other, and the choice we make pursuant to our individual organization.
Source: Saint-Fond,in L'Histoire de Juliette, ou les Prosp?rit?s du Vice, pt. 2 (1797).
-- Marquis de Sade, (Jun 2 1740-1814), French novelist; He was the author of erotic writings that gave rise to the term sadism; wrote Justine.