He revived Nominalism in philosophy and theology. His teaching was so much that of the schools through which Luther had been that the latter could declare: “_sum occamicæ factionis_,”[305] and speak quite simply of Occam as “_magister meus_.”[306] It cannot, however, be said, as it recently has been, that Luther “prided himself on being Occam’s disciple,” and that he “would not give a refusal to his beloved master”; for it was more in irony than in earnest that he spoke when he said: “I also am of Occam’s party”; and when, as late as 1530, he still speaks of “Occam, my beloved master,”[307] this is said in jest only in order to be able to accuse him more forcibly as an expert with the greatest of errors; nevertheless, he places Occam in point of learning far above Thomas of Aquin, the “so-called Doctor of Doctors,” whom he despised. Regarding, however, the esteem in which Occam was held in his youth, he afterwards said: “We had to give him the title _Venerabilis huius sectæ [scholæ] primus repertor_,” but adds: “Happy are you [my table-companions] in not having to learn the dung which was offered me.”[308] He felt compelled, nevertheless, to praise Occam’s dialectic skill and his inexhaustible acuteness, and for his part considered him the most gifted of the Schoolmen (“_summus dialecticus, scholasticorum doctorum sine dubio princeps et ingeniosissimus_”).[309] It was not only at a later period that he was ready to admit his weaknesses, for even at the beginning of his course, in the Commentary on Romans (1515-16), he attacks certain essential errors of Occam and his school. His acquaintance with the master he owed, moreover, more to Occam’s disciples, i.e. to the later theologians of the Occamist school, more especially Gabriel Biel, than to his own reading of the voluminous and unwieldy works of Occam himself. We are already aware that, of the disciples and intellectual heirs of Occam, he studied more particularly the two well-known writers d’Ailly, Cardinal of Cambrai—whom Luther usually calls quite simply the Cardinal—whose ideas were very daring, and the humble Gabriel Biel, Professor at Tübingen, whose writings, clear, and rich in thought, possessed many good qualities. Their one-sided Nominalism unfortunately led these Occamists to an excessive estimate of the powers of nature and an undervaluing of grace, and also to a certain incorrect view of the supernatural. We must add that they were disposed to neglect Holy Scripture and to set too much store on their speculations, and that, with regard to the relations between reason and faith, they did not abide by the approved principles and practice of the earlier Schoolmen.