 Lombard’s brief mention of Jerome’s “spark of reason” (sic) in the aforementioned passage is the full extent of his treatment of conscience and synderesis. Still, that was sufficient to ensure that it would receive robust attention by later scholastics, who would track down the original text from Jerome in order to comment on it. A compilation of theological writings taken mainly from Scripture and the Fathers and arranged in systematic fashion, the Sentences had an enormous impact on later theological enquiry since much it, after the 1220s, was carried out within the taxonomy that Lombard had laid out in his work. Indeed, after Alexander of Hales (1185–1245) adopted the Sentences as the main source for his ordinary lectures at Paris in 1222, and Richard Fischacre (1206–1248) did the same at Oxford in 1245, lecturing on the Sentences became a requirement for every aspiring master of theology. Thus did such major scholastics of the thirteenth and fourteenth centuries as Bonaventure (1221–1274), Thomas Aquinas (1224/25–1274), John Duns Scotus (1265–1308) and William of Ockham (1287–1347) come to write their important commentaries on the work. This tradition would continue well into the sixteenth century.