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 IThe faith of those who live their faith is a serene faith. What you long for will be given you; what you love will be yours for ever.
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 IDavid's Lord was made David's Son, and from the fruit of the promised branch sprang One without fault, the two-fold nature coming together in one Person, that by one and the same conception and birth might spring our Lord Jesus Christ, in Whom was present both true Godhead for the performance of mighty works and true Manhood for the endurance of sufferings.
Pope Leo I