Cassian and the Fathers is the initial volume in the series of Novitiate Conferences of Thomas Merton, the classes he presented to young men beginning their monastic life at the Abbey of Gethsemani in Kentucky. They contain Merton's insights on important Patristic and monastic figures preceding the time of St. Benedict, above all John Cassian, the most significant bridge between the early desert fathers and the development of monastic life in the West, and they reveal the continuing relevance of their teachings for contemporary monastics and other Christians. Much of the value of interest of Cassian and the Fathers, as of the novitiate conferences in general, lies in the light it casts on Merton himself as teacher, novice master and monk. These notes provide a privileged standpoint for observing Merton functioning as an integral and important member of his monastic community. The 'public' Merton has long been visible in his works written for publication, and has more recently been complemented by the 'interpersonal' Merton disclosed in his correspondence and the 'intimate' Merton revealed in his complete journals. This edition includes an extensive introduction situating these conferences and Merton's years as novice master in the context of his broader life as monk and writer, an extensively annotated edition of the text of the conferences based on Merton's own typescript, and helpful appendices indicating changes Merton made to his text, correlating the written text with taped versions of the actual classes, and providing suggestions for further reading both in Merton's other works and in more recent studies of the figures he discusses here.