This study offers an in-depth examination of Porphyrian soteriology, or the concept of the salvation of the soul, in the thought of Porphyry of Tyre, whose significance for late antique thought is immense. Porphyry's concept of salvation is important for an understanding of those cataclysmic forces, not always theological, that helped convert the Roman Empire from paganism to Christianity. Porphyry, a disciple of Plotinus, was the last and greatest anti-Christian writer to vehemently attack the Church before the Constantinian revolution. His contribution to the pagan-Christian debate on...