Teach nothing new, but instill into all men's breasts those things which the Fathers of revered memory have with harmony of statement taught... Preach nothing else than what we received from our forefathers... Accordingly, both in the rule of faith and in the observance of discipline, let the standard of antiquity be maintained throughout.
Pope Leo IAs the world attracts us with its appearance, and abundance and variety, it is not easy to turn away from it unless in the beauty of things visible the Creator rather than the creature is loved; for, when He says, 'you shall love the Lord your God from all your heart, and from all your mind, and from all your strength' (Mt. 22:37), He wishes us in nothing to loosen ourselves from the bonds of His love. And when He links the love of our neighbor also to this command, He enjoins on us the imitation of His own goodness, that we should love what He loves and do what He does.
Pope Leo IThe Child, the Lord Jesus Christ . . . Word in our flesh, Wisdom in infancy, Power in weakness, and in true Man, the Lord of Majesty.
Pope Leo IThe faith by which we live shall never vary in any age . . . for one is the faith which sanctifies the Just of all ages.
Pope Leo I