The Nobel Peace Prize–winning doctor, theologian, and missionary explores the essence of faith in this masterful early work on Kantian metaphysics. Famous for his medical missionary work in what is now the West African country of Gabon, Albert Schweitzer was an accomplished theologian, philosopher, and international bestselling author. While studying for his PhD at the Sorbonne, Schweitzer developed his views on theology through an analysis of Immanuel Kant’s philosophy of religion.   In The Essence of Faith, Schweitzer explores Kantian ideas to arrive at an inspiring meditation on God, faith, and the limits of human understanding. Both an accessible introduction to Schweitzer’s theology and a strikingly original approach to Kant’s writing and thought, The Essence of Faith is a slim volume of profound ideas.