We discover the adventurous life of one of the World's most powerful minds. His works would inspire philosophy and theology and became a pillar of western culture. This wayward youth from Carthage would be Saint Augustine. Long years of missteps and tireless search for truth led him from Manichaeism to Neo-Platonism and later to Christianity. In his last years the Vandal scourge could favour a new outbreak of paganism... He wrote then his brilliant work, "The City of God". His legacy was immense. He transmitted two cultures, the Greco-Roman and the Judeo-Christian. He marked out a new path for thought.