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 IAnd each one is a partaker of this spiritual origin in regeneration; and to every one when he is re-born, the water of baptism is like the Virgin's womb; for the same Holy Spirit fills the font, Who filled the Virgin, that the sin, which that sacred conception overthrew, may be taken away by this mystical washing.
Pope Leo II have neither permitted, nor shall I permit, the things which have been settled by the holy fathers to be violated by any innovation.
Pope Leo IPeace is the first thing the angels sang. Peace is the mark of the children of God. Peace is the nurse of love. Peace is the mother of unity. Peace is the rest of the blessed souls. Peace is the dwelling place of eternity.
Pope Leo I