We have seen that writing prologues was a key part of a young developing master’s education. Thomas wrote prologues to his cursory biblical commentaries and to his Sentences commentary. He was also required to deliver two prologues – two principia – during his inception as a master, one at his principium in aula and the other at his resumptio, both of which were to be in praise of the sacred Scriptures. All were crafted in the sermo modernus style, which was the style of preaching that had become customary – indeed standard – by the late thirteenth century. Other than in his sermons, did this style of composition continue to influence Thomas after his inception as a master? The answer is yes.