" When, in reading over my writings, I discover in them anything which is due to the working of the old leaven in me, I blame myself for it with true sorrow; but if anything which I have spoken is, by God's gift, from the unleavened bread of sincerity and truth, I rejoice therein with trembling. For what have we that we have not received? "

― Augustine of Hippo , The Complete Works of Saint Augustine: The Confessions, On Grace and Free Will, The City of God, On Christian Doctrine, Expositions on the Book Of Psalms, ... (50 Books With Active Table of Contents)