The people of Iceland were not cut off from the ordinary European learning and its commonplaces. They read the same books as were read in England or Germany. They read St. Gregory _de Cura Pastorali_, they read _Ovidius Epistolarum_, and all the other popular books of the Middle Ages. In time those books and the world to which they belonged were able to obtain a victory over the purity of the Northern tradition and manners, but not until the Northern tradition had exhausted itself, and the Icelandic polity began to break up. The literature of the maturity of Iceland just before the fall of the Commonwealth is a literature belonging wholly and purely to Iceland, in a style unmodified by Latin syntax and derived from the colloquial idiom. The matter is the same in kind as the common matter of heroic poetry. The history represents the lives of adventurers, the rivalries and private wars of men who are not ignorant of right and honour, but who acknowledge little authority over them, and are given to choose their right and wrong for themselves, and abide the consequences. This common matter is presented in a form which may be judged on its own merits, and there is no need to ask concessions from any one in respect of the hard or unfavourable conditions under which this literature was produced. One at least of the Icelandic Sagas is one of the great prose works of the world--the story of Njal and his sons. The most perfect heroic literature of the Northern nations is to be found in the country where the heroic polity and society had most room and leisure; and in Iceland the heroic ideals of life had conditions more favourable than are to be discovered anywhere else in history. Iceland was a world divided from the rest, outside the orbit of all the states of Europe; what went on there had little more than an ideal relation to the course of the great world; it had no influence on Europe, it was kept separate as much as might be from the European storms and revolutions. What went on in Iceland was the progress in seclusion of the old Germanic life--a life that in the rest of the world had been blended and immersed in other floods and currents. Iceland had no need of the great movements of European history.