An intellectual biography depicting the originality of a multifaceted thinker of the XX century: a man of great cultural richness, known as a musicologist, supreme interpreter of Bach, A. Schweitzer was also a profound theologian and philosopher, as it's shown in this book.

Known in the history of the twentieth century's theology especially for the "eulogy" who had the courage to speak about the research on the life of Jesus (Leben-Jesu-Forschung) practiced in the previous century, Albert Schweitzer is a singular witness of his studies: the careful reading of the Jesus' message, which he understood as an eschatological message - opposed to the liberal theology - and of the mysticism of Saint Paul, brought him, in fact, to practice in a radical form the Christian ethics, devoting a long part of his life (from 1913 to 1965, except the years of imprisonment in France during the First World War) to the care of lepers, at the hospital that he founded in Lambarené (Gabon). In his vision there is a meeting of mysticism and study in a remarkable synthesis, where they feed each other, indicating that the "return to the authentic Jesus" is impossible only through the historical-critical investigation but needs also the assumption of the practice experienced by the same Jesus in view of God's Kingdom.