St. Symeon the New Theologian

“One should not contradict the Latins when they say that the Bishop of Rome is the first. This primacy is not harmful to the Church. Let them only prove his faithfulness to the faith of Peter and to that of the successors of Peter. If it is so, let him enjoy all the privileges of Pontiff. Let the Bishop of Rome be successor of the orthodoxy of Sylvester and Agatho, of Leo, Liberius, Martin and Gregory, then we also will call him Apostolic and the first among the other bishops; then we also will obey him, not only as Peter, but as the Savior Himself.” (Symeon the New Theologian, Dialogue Against Heresies 23, PG 155:120 AC; cited in Meyendorff, The Primacy of Peter [A.D. 949–1022]).