Their efforts took two forms, the organization of the frontier defences which repulsed the barbarian, and the development of the provinces within those defences. The first of these achievements was but for a time. In the end the Roman legionary went down before the Gothic horseman. But before he fell he had done his work. In the lands that he had sheltered, Roman civilization had taken strong root. The fact has an importance which we to-day might easily miss. It is not likely that any modern nation will soon again stand in the place that Rome then held. Our culture to-day seems firmly planted in three continents and our task is rather to diffuse it further and to develop its good qualities than to defend it. But the Roman Empire was the civilized world; the safety of Rome was the safety of all civilization. Outside was the wild chaos of barbarism. Rome kept it back from end to end of Europe and across a thousand miles of western Asia. Through all the storms of barbarian onset, through the carnage of uncounted wars, through plagues which struck whole multitudes down to a disastrous death, through civil discord and sedition and domestic treachery, the work went on. It was not always marked by special insight or intelligence. The men who carried it out were not for the most part first-rate statesmen or first-rate generals. Their successes were those of character, not of genius. But their phlegmatic courage saved the civilized life of Europe till that life had grown strong and tenacious, and till even its assailants had recognized its worth. It was this growth of internal civilization which formed the second and most lasting of the achievements of the Empire. Its long and peaceable government--the longest and most orderly that has yet been granted to any large portion of the world--gave time for the expansion of Roman speech and manners, for the extension of the political franchise, the establishment of city life, the assimilation of the provincial populations in an orderly and coherent civilization. As the importance of the city of Rome declined, as the world became Romeless, a large part of the world grew to be Roman. It has been said that Greece taught men to be human and Rome made mankind civilized. That was the work of the Empire; the form it took was Romanization.