Traditional academic criticism has looked for the unity of Mme de Lafayette's La Princesse de Clèves in the correspondence with its times, with the leading writers and thinkers of the period. New criticism believes the unity of the novel resides in a particular view of life of the author, pessimistic and even desperate, expressed in an individual style. In contrast with both the traditional and contemporary views the unity of the work consists of the creation of the inner life and personality of the main character who, significantly, gives her name to the novel; and of a complex but definite structure with themes and variations resembling a musical composition. The inner life of the main character is presented through two moral tests and culminates in a free choice which represents her total being: intellectual, moral, emotional. There is, therefore, no mutilation, no sacrifice of one aspect of herself to some external ethical standard, but full realization of the potentialities set forth by the novelist at the outset. (In French)