A service possibly even greater than that of the preservation of literature and of the keeping alive of an intellectual spirit, was rendered by the monks in the great educational work carried on by them. In the Monasterium Resbacense, in Brieggan, founded by Bishop Andœnus in 634, whose first abbot, S. Ægilius, was a pupil of S. Columban’s, the list of books in the _scriptorium_ included Cicero, Virgil, Horace, Terence, Donatus, Priscian, and Boëthius. Of later authors, the works of Beda, Isidore, Aldhelm, the _Gesta Francorum_, etc.[183] By the time of Charles Martel and the battle of Poitiers, there had been much plundering and devastation of the monasteries and convents, the effects of which remained even after the Arabs were driven back. During the tumultuous reigns of the Pepins, many clerics returned to or took up the profession of arms, and devotion and literature were alike neglected.[184] The biographer of S. Eligius, writing in 760 (under Pepin) says:[185] “What do we want with the so-called philosophies of Pythagoras, Socrates, Plato, and Aristotle, or with the rubbish and nonsense of such shameless poets as Homer, Virgil, and Menander? What service can be rendered to the servants of God by the writings of the heathen Sallust, Herodotus, Livy, Demosthenes, or Cicero?” Fredegar, called _Scholasticus_, wrote his chronicle in a Burgundian monastery, about 600. He complains that “the world is in its decrepitude. Intellectual activity is dead, and the ancient writers have no successors.” The man to whom the revival of the literary interests of the northern monasteries was largely due was the Archbishop Chrodegang of Metz, 742-766, Chancellor of Charles Martel, a Benedictine. He framed rules for the monasteries which restored discipline and infused new life. His code was adopted throughout France, Italy, and Germany, and even in England. A certain uniformity of instruction was thus secured in the monastery schools in singing, language, and script, which persisted almost until the time of Alcuin, and the influence of which extended even beyond the monasteries. Mabillon tells a story of Odo, Abbot of Clugni (who died about 942), who was so seduced by the love of knowledge that he was led to employ himself with the vanities of the poets, and resolved to read the works of Virgil regularly through. On the following night, however, he saw in a dream a large vase of marvellous beauty, but filled with innumerable serpents, which, springing forth, twined about him, but without doing him any injury. The holy man, waking and prudently considering the vision, took the serpents to stand for the figments of the poets, and the vase to represent Virgil’s book, which was painted outwardly with worldly eloquence, but was internally defiled with the vanity of impure meaning. From thenceforward, renouncing Virgil and his pomps, and keeping the poets out of his chamber, he sought his mental nourishment solely from the sacred writings.[186]