 On other points, however, Marsilius was critical of Buridan. For example, Marsilius considered Buridan’s solution to the problem of the possible separation of accidents from their substance as not in accordance with the teachings of Aristotle, and therefore not truly metaphysical (metaphysicaliter), but rather in line with theological concerns. Only miraculously could God take over the supporting power of the substance, thus separating the accident from its natural bearer. According to Marsilius, however, such possible divine intervention should not be taken into account in metaphysics, where the philosopher must use natural reason  alone.[25]