The final section of Émile, The Profession of Faith of a Savoyard Vicar, is intended to be a defense of religious belief. Rousseau`s choice of a Catholic vicar of humble peasant background as a spokesman for the defense of religion was in itself a daring innovation for the time. This critical edition offers different variants of all existing manuscripts. An introduction analyses the composition and the publication of this work. Also includes a bibliography, a grammatical, orthographical and semantic index.