An engaging and thought-provoking translation of Paul Ricoeur's earliest work that is essential for understanding his philosophical development The Reflexive Method Applied to the Problem of God in Lachelier and Lagneau, now held in the Ricoeur Archive in Paris, was a qualifying thesis Ricoeur wrote at the age of twenty-one when he was just beginning his advanced university studies. In it he examines the use of the reflexive method used by two important French philosophers from the nineteenth century, Jules Lachelier and Jules Lagneau. They both sought to develop an "integral metaphysics" that recognizes God as the principle underlying pure, impersonal thought and practical reason, and that requires a kind of philosophical faith. In his conclusion, Ricoeur criticizes their doctrine of God and philosophy of immanence for not being able to deal with the question of transcendence and for its failure to address concrete human existence yet concedes that it may be seen as a first truce in "the internecine war" between faith and reason. Despite this criticism, Ricoeur later maintained that his own philosophy does stand "in the line of a reflexive philosophy" while remaining "within the sphere of Husserlian phenomenology" and striving to be "a hermeneutical variation of this phenomenology." He also continued to address the question of faith and reason in works like Figuring the Sacred and (with Andre LaCocque) Thinking Biblically, as well as in many other essays. The Reflexive Method Applied to the Problem of God in Lachelier and Lagneau is necessary reading for anyone doing serious work on and with Ricoeur's philosophy.