would not suffice for the conversion of such men as Volusian, whose life was one with the life of the empire. Their difficulties were rather political, historical, and social. They could not see how the reception of the Christian rule of life was compatible with the interests of Rome as the mistress of the world.[4] And thus Augustine was led to take a more distinct and wider view of the whole relation which Christianity bore to the old state of things,--moral, political, philosophical, and religious,--and was gradually drawn on to undertake the elaborate work now presented to the English reader, and which may more appropriately than any other of his writings be called his masterpiece[5] or life-work. It was begun the very year of Marcellinus' death, A.D. 413, and was issued in detached portions from time to time, until its completion in the year 426. It thus occupied the maturest years of Augustine's life--from his fifty-ninth to his seventy-second year.[6] From this brief sketch, it will be seen that though the accompanying work is essentially an Apology, the Apologetic of Augustine can be no mere rehabilitation of the somewhat threadbare, if not effete, arguments of Justin and Tertullian.[7] In fact, as Augustine considered what was required of him,--to expound the Christian faith, and justify it to enlightened men; to distinguish it from, and show its superiority to, all those forms of truth, philosophical or popular, which were then striving for the mastery, or at least for standing-room; to set before the world's eye a vision of glory that might win the regard even of men who were dazzled by the fascinating splendour of a world-wide empire,--he recognised that a task was laid before him to which even his powers might prove unequal,--a task certainly which would afford ample scope for his learning, dialectic, philosophical grasp and acumen, eloquence, and faculty of exposition.