Within the Church, sins are forgiven in three ways: by baptism, by prayer, and by the greater humility of penance; yet God does not forgive sins except to the baptized.
Saint AugustineO Sacrament of Love! O sign of Unity! O bond of Charity! He who would have Life finds here indeed a Life to live in and a Life to live by.
Saint AugustinePassion is the evil in adultery. If a man has no opportunity of living with another man's wife, but if it is obvious for some reason that he would like to do so, and would do so if he could, he is no less guilty than if he was caught in the act.
Saint AugustineSuch then in number and importance are the precious ties belonging to the Christian name which keep a believer in the Catholic Church, as it is right they should ... With you, where there is none of these things to attract or keep me... No one shall move me from the faith which binds my mind with ties so many and so strong to the Christian religion... For my part, I should not believe the gospel except as moved by the authority of the Catholic Church.
Saint Augustine