THE EARLY SITUATION OF CHRISTIANITY, 302 THE PHILOSOPHIES INFLUENCING CHRISTIAN THOUGHT, 305 THE PERIODS OF EARLY CHRISTIANITY, 306 THE APOLOGISTS, 307 THE GNOSTICS, 310 THE REACTION AGAINST GNOSTICISM.――THE OLD CATHOLIC THEOLOGIANS, 312 ORIGEN AND THE SCHOOL OF CATECHISTS, 314
A Beginner's History of Philosophy, Vol. 1: Ancient and Mediæval Philosophy · The Wunder Library — complete classics, free to read, with narration.