believe in order to understand.’26 This, certainly, has been a common (and, for Plantinga, an influential) way of understanding the difference between Thomism and Augustinianism.27 However, as will be seen in chapter nine, such an understanding needs significant modification. The Augustinian/Thomistic divide is not the only historical factor affecting present day attitudes to apology. Of equal, if not greater importance is the impact of the Enlightenment, and, prior to that, of the ground-breaking