The Heart of Virtue: Lessons from Life and Literature on the Beauty of Moral Character

I am one of Professor DeMarcos many Philosophy students at the University of Waterloo/Ontario. This book is actually a very nice book to read and to own; it has a lot of beautiful and interesting stories and it is a valuable "Bildungsroman". I finally have a list of all the virtues + their explanations and good examples. The links to Christianity or religion related stories are really good. Could it be that spiritual or religious people have more virtues than others or is that again a matter of belief? Not many philosophers believe in God, or am I wrong?