Philosophy in the Bedroom Marquis De Sade - Philosophy in the Bedroom is a 1795 book by the Marquis de Sade written in the form of a dramatic dialogue. Though initially considered a work of pornography, the book has come to be considered a socio-political drama. Set in a bedroom, the seven dialogues concern Eugenie, a virgin, who has been sent to the house of Madame de Saint-Ange by her father, to...