The work of Jean - Jacques Rousseau is presented in the series Cambridge Texts in the History of Political Thought in two volumes, together forming the most comprehensive collection of Roussea`s political writings in English. This first volume contains the earlier writings, the Firs and Second Discourses ,the publication of which signalled the power and challenge of Rousseau`s thinding. It also includes Rousseau`s extensive Replies to critis of these Discourses. he Essay on the Origin of Lmguage