According to Monro, based on Ludwich, Plato is the most prolific quoter of Homer, with 209 lines. Next most is Aristotle, with 93 lines. Of the 209, only two differ from the Vulgate, in Iliad Book IV, which Ludwich termed "Kontaminiert", “corrupted.” Several were marked as spurious (Ludwich's "aufser") by the Alexandrians. There was only one instance of four lines not in the Vulgate (Ludwich's "Zusatzversen"), From Iliad IV. Monro asserts “… whatever interpolated texts of Homer were then current, the copy from which Plato quoted was not one of them.” Aristotle's quotations do not have the same purity, which is surprising. For about 20 years they were at the same school, the Platonic Academy.