Read this account of a French student who stumbled into Christ while on vacation (from Christianity Today). Much of his story reminds me of Augustine's Confessions, particularly Guillaume's attention to the desires that have guided the course of his life.
I am also reminded of someone who at one point asked me, "Why do you believe in God?" I stumbled through a series of arguments, before the person cut in: "No, not why, but why do you bother?" This to me is the more pressing question to spend time on in today's university environment.