If Paul, the herald of the truth, the trumpet of the Holy Spirit, hastened to the great Peter, to convey from him the solution to those in Antioch, who were at issue about living under the law, how much more do we, poor and humble, run to the Apostolic Throne [Rome] to receive from you [Pope Leo] healing for wounds of the the Churches. For it pertains to you to have primacy in all things; for your throne is adorned with many prerogatives.
--Theodoret of Cyrus, in a letter to Pope Leo