After making his profession the young religious was set by his Erfurt superiors to study theology, which was taught privately in the monastery. The theological fare served up by the teachers of the Order was not very inviting, consisting as it largely did of the mere verbalism of a Scholasticism in decay. With the exception of the Sentences of Peter Lombard, the students at the Erfurt monastery did not study the theological works of the great masters of the thirteenth century; neither Thomas of Aquin, the prince of scholastic theology and philosophy, nor his true successors, not even Ægidius Romanus, himself a Hermit of St. Augustine, were well known to them. The whole of their time at Erfurt, as elsewhere also, was devoted to the study of the last of the schoolmen who, indeed, stood nearer in point of time, but who were far from teaching the true doctrine with the fulness and richness of the earlier doctors. They were too much given to speculation and logical word-play. The older schoolmen were no longer appreciated and nominalistic errors, such as were fostered in the school of William of Occam, held the field. One of the better schoolmen of the day was Gabriel Biel. His works, which have a certain value, together with some of the writings of the Fathers of the Church, formed the principal arsenal from which Luther drew his theological knowledge, and upon which he exercised his dialectics. In addition to this, he also studied the theological tractates of John Gerson and Cardinal Peter d’Ailly, works which, apart from other theological defects, contain various errors concerning the authority of the Church and her Head; that these particular errors had any deeper influence on the direction of Luther’s mind cannot, however, be proved. What we do find is that the one-sidedness of this school, with its tendency to hairsplitting, had a negative effect upon him. At an early date he was repelled by the scholastic subtleties, for which, according to him, Aristotle alone was responsible, and preferred to turn to the reading and study of the Bible. He nevertheless made the prevalent school methods so much his own as to apply them often, in a quite surprising fashion, in his earliest sermons and writings. The man who exercised the greatest influence on the theological study in the Erfurt monastery was the learned Augustinian, Johann Paltz, who was teaching there when Luther entered. He was a good Churchman and a fair scholar, and was also much esteemed as a preacher. By his side worked Johann Nathin, who has already been mentioned, likewise one of the respected theologians of the Order.[27] Luther’s teachers, full of veneration for the Holy Scriptures as the revealed Word of God, were not at all displeased to see their pupil having frequent recourse to the Bible, in order to seek in the well of the Divine Word instruction and enlightenment, by which to supplement the teachings of the schoolmen and the Fathers.