The dogmatic Papal conception, which we find dawning in the mind of Damasus and see very clear in the mind of Innocent I. and his successors, reached its full development, on the spiritual side, in the mind of Leo the Great. This development was inevitable. There were Eastern, and even some Western, bishops who maintained, against Leo, that the prestige of the Roman See was merely the prestige of Rome, but the answer of the Papacy was easy and effective. In the Gospels which Europe now treasured, Peter was the "rock" on which the Church was built, and to him alone had been given the keys of the kingdom of heaven. Had the Church lost its foundation when Peter died? Were the keys buried beside the bones of Peter in that marble tomb at the foot of the Vatican? There was, from the clerical point of view, logic in the Roman bishop's claim to have inherited the princedom. Leo from the first hour of his Pontificate was sincerely convinced of it. His sermons are full of it. To him is committed "the care of all the Churches": a phrase which he bequeaths to his successors. He is the new type of Roman, blending the ideas of Jerome and Augustine. The wreck of the City of Man matters little. What matters is that these Arian Goths and Vandals are trampling on the City of God: that the churches of Gaul and Spain and Italy and Africa and the East are in disorder, and the successor of Peter must restore their discipline. He is so absorbed in his divine duty that he does not notice how the circumstances favour him. Every other lofty head in the Empire is bowed, and from the seething and impoverished provinces hundreds are looking to the strong man at Rome. His early letters are the letters of a Supreme Pontiff. The African bishops, he hears, suffer dreadful disorders in their churches. Elections to church-dignities are bought and sold: even laymen and twice-married clerics become bishops. With serene indifference to the earlier history of the African Church and its tradition of independence, he peremptorily recalls the canons and insists on their observance.[47] Fortunately for him, the long struggle against the Donatists and the devastating onset of the Vandals have enfeebled, almost annihilated, the African Church, and there is none to question his authority. He hears that Anatolius has been made Bishop of Thessalonica, and writes[48] to remind him that he is the "vicar" of the Roman bishop, the successor of Peter, "on the solidity of which foundation the Church is established." When, at a later date, Anatolius uses his power harshly, he sternly rebukes him. And it is interesting to notice what the discipline is on which he insists in this letter.[49] Even subdeacons shall not marry, or, if they are married, shall not know their wives. We are very far away from Callistus.