In his Disputation Against Scholastic Theology of 4 September 1517, Luther entered into the medieval debate between the Thomists and the Ockhamists by attacking the Ockhamist position and arguing that man by nature lacks the ability to do good that the Ockhamists asserted he had (and thus denying that man could do anything to deserve congruent merit). Modern scholars disagree about whether Luther in fact intended to criticize all scholastics in this Disputation or if he was concerned only with the Ockhamists. Arguing in favor of a broader interpretation is the fact that Luther went on to criticize the use of Aristotle in theology (Aristotle was the basis of Thomist as well as Ockhamist theology).