St. Augustine

St. Augustine of Hippo (354-430) was a North African bishop, theologian, and philosopher whose writings shaped Western Christian thought. Born in Thagaste, he taught rhetoric before his conversion to Christianity and baptism by Ambrose of Milan in 387. He later became bishop of Hippo Regius, where he preached, wrote, and defended Christian doctrine during the late Roman period. His major works include Confessions, The City of God, On Christian Doctrine, and extensive sermons and expositions on Scripture.