The Rule of Augustine, the oldest monastic rule with Western origins, still provides inspiration for over 150 Christian communities. This account of Augustine's contributions to the monastic spirituality of the late Roman world and of his achievement as a monastic legislator fills a critical gap in Augustinian studies. Tracing Augustine's progress from a philosophical to a biblical spirituality and his development of a monastic ideal largely shaped by Greco-Roman philosophical and rhetorical influences, Lawless also discusses Augustine's renunciation of sexuality, property, and worldly ambition at his conversion as a foreshadowing of the future vows of chastity, poverty, and obedience. In addition, he argues for the existence of a monastery at Thagaste from 388 to 391. This book includes new English translations of the Regulations for a Monastery, the Rule, and Letter 211.