  Historically, Albert’s reputation in natural philosophy is at least as high as the one he had in logic. His commentaries on the Physics and De caelo are close to Buridan’s, but in some questions on De generatione et corruptione he rather follows Oresme. He appeals to the authority of his “revered masters from the Faculty of Arts at Paris” at the beginning of his questions on De caelo. Even so, it should be noted that his Physics was composed soon after 1351, before the final version of Buridan’s Questions on the Physics (between 1355 and 1358). On some points we see that Buridan modifies his positions between the third and the final versions of his commentary, and we can presume that this is in response to Albert’s ideas.