 As discussed above, Lefèvre regularly mentioned “analogy” as a way to relate truths in different domains. While it seems that he never fleshed out the details of this method, his obsession with providing trustworthy steps to a unified, methodized, and above all pedagogically useful philosophy is perhaps his most lasting legacy—one which would be taken up in debates over method and textbooks throughout the sixteenth century (Schmitt 1988). The fascination of Lefèvre and his students with analogies and mathematics offers a glimpse of the early motivations to find a “universal method” that later bloomed in debates over universal arts (Rossi 2000: 29, 39; Ong 1958: 76). Timothy Reiss first identified Lefèvre and his circle with the early swell of philosophical interest in the quadrivium in the sixteenth century (Reiss 1997). Oronce Fine in particular extended Lefèvre’s mathematical legacy (Pantin 2009). By the early seventeenth century, some authors would put forward a method which was strongly mathematical and which purported to unify not only arithmetic and geometry but all disciplines under a mathesis universalis (Rabouin 2009). Lefèvre could be said to have inaugurated the genre of printed philosophical textbooks in which such positions emerged (Oosterhoff 2018).