 Lefèvre, thus, did not emphasize the roots of logic in the rhetorical structure of ordinary discourse, as Agricola or Valla might have done (Nauta 2009). Instead, he focused on the “starting points”, principia, or proloquia which ground reasoning. The importance he assigns to proloquia seems to be connected to his pedagogically sensitive introductions, intended to convey clear, immediate learning of the foundational principles of any discipline or art. The utility of this method also appears to be rooted in metaphysical assumptions about universal harmony and analogy. In his annotations on Hermes Trismegistus, Lefèvre stressed the harmonious structure of creation, reflected in the symmetry between macrocosm and microcosm (Lefèvre 1505b). As discussed above, such a harmonious structure justified making inferences from one domain to another. 