Abstract
This paper argues that in Augustine rationality in religion depends in important respects on religious social practice. This point is developed in reference to the questions of the reasonableness of a commitment to a particular religion, the meaningfulness of religious terms and concepts, and the truth and falsity of religious claims. In a concluding section, I contend that Augustine, while giving rationality in religion a basis in religious practice. succeeds in avoiding the tendency, found in some otherwise similar contemporary positions. to sever rationality in religion from rationality in other domains of inquiry.