=1.= The present work treats of a subject of outstanding interest in the literature which is associated with the history of the Roman State, and which is expressed partly in Hellenistic Greek, partly in Latin. In the generations preceding our own, classical study has, to a large extent, attended to form rather than to matter, to expression rather than to content. To-day it is beginning to take a wider outlook. We are learning to look on literature as an unveiling of the human mind in its various stages of development, and as a key to the true meaning of history. The literature of Greece proper does not cease to attract us by its originality, charm, and variety; but the new interest may yet find its fullest satisfaction in Roman literature; for of all ancient peoples the Romans achieved most, and their achievements have been the most enduring. It was the Roman who joined the ends of the world by his roads and his bridges, poured into crowded towns unfailing supplies of corn and perennial streams of pure water, cleared the countryside of highwaymen, converted enemies into neighbours, created ideals of brotherhood under which the nations were united by common laws and unfettered marriage relations, and so shaped a new religion that if it shattered an empire it yet became the mother of many nations. We are the inheritors of Roman civilization; and if we have far surpassed it in scientific knowledge and material plenty, we are not equally confident that we possess better mental balance, or more complete social harmony. In this direction the problems of Roman life are the problems of Western life to-day; and the methods by which they were approached in the Roman world deserve more than ever to be studied by us. Such a study, if it is to be in any true sense historical, must break through the convention by which ancient Greece and Rome have come to be treated as a world apart; it must seek its starting point in the distant past, and count that of chief importance which will bear fruit in the ages that follow. [Sidenote: Beliefs of the Romans.]