 Hackett (2018c) raises questions about this conclusion. He points to a significant problem with the translation of a central passage in Perspectiva in support of this position. Further, by placing Bacon alongside his confrère, one can see that the doctrine of divine illumination plays a central role in both pure intellectual knowledge, moral knowledge and knowledge of the natural world. Yes, the material species are a necessary but not a sufficient element in the acquisition of pure intellectual knowledge. Without the illuminative process within from above, pure intellectual vision is blocked. It is not at all clear that one can claim that Bacon is a material monist. Bacon’s separation of the account of physical species in the DMP could lead one to think he has to be a material monist, even with regard to species in the medium, sense, and reason. And there is one sense in which this is true. But in the end, as he states in both the DMP and the PRSP, matter and spirit are two entirely separate kinds of substance. Hence, at a deep level, Bacon is a substance dualist (medieval version).