Max Horkheimer and Theodor Adorno 's Dialectic of Enlightenment (1947) is titled "Juliette or Enlightenment and Morality" and interprets the ruthless and calculating behavior of Juliette as the embodiment of the philosophy of enlightenment. Similarly, psychoanalyst Jacques Lacan posited in his 1966 essay "Kant avec Sade" that de Sade's ethic was