 Starting in 1255, study in the work of the arts faculty at Paris was officially centered around the works of Aristotle. Further, the commentaries of the masters of arts rather than of theology brought a different hermeneutic to the interpretation of Aristotle. No longer committed to Aristotle as a source for the truth (the truth was possessed by theology), the masters of arts did not try to bring Aristotle into harmony with other authoritative sources and felt free to expose rather than try to save Aristotle from holding what they took to be erroneous positions. Because Aristotle was no longer considered an essentially error-free authoritative source, commentaries shifted to an emphasis on questions arising from the text rather than the exposition of text (Lohr 1982, 95–6). This shift is heralded by most scholars as marking an important development toward modern notions of both science and commentary.