It is said that St. Augustine was accosted one day on the street by a former mistress some time after he had become a Christian. When he saw her he turned and walked the other way. Surprised, the woman called out, "Augustine, it is I". Augustine as he kept going the other way, answered her, "Yes, but it is not I."

It is an amusing story - one that comes close to making the same point the German theologian Dietrich Bonhoeffer made when he wrote "When Christ calls a man to follow him, he calls him to die."