will always separate and split. If it has such persons, however, it can tolerate within it a great amount of individual differences, provided that the leaders subordinate the interests of the whole to their own ambition. We have seen how Irenaeus and Tertullian, though they in all earnestness represented the _fides catholica_ and _ecclesia catholica_ as inseparably connected,[168] were already compelled to have recourse to bishops in order to ensure the apostolic doctrine. The conflicts within the sphere of the rule of faith, the struggles with the so-called Montanism, but finally and above all, the existing situation of the Church in the third century with regard to the world within her pale, made the question of organisation the vital one for her. Tertullian and Origen already found themselves face to face with episcopal claims of which they highly disapproved and which, in their own way, they endeavoured to oppose. It was again the Roman bishop[169] who first converted the proposition that the bishops are direct successors of the Apostles and have the same "locus magisterii" ("place of government") into a theory which declares that _all_ apostolic powers have devolved on the bishops and that these have therefore peculiar rights and duties in virtue of their office.[170] Cyprian added to this the corresponding theory of the Church. In one decisive point, however, he did not assist the secularising process which had been completed by the Roman bishop, in the interest of Catholicity as well as in that of the Church's existence (see the following chapter). In the second half of the third century there were no longer any Churches, except remote communities, where the only requirement was to preserve the Catholic faith; the bishops had to be obeyed. The idea of the one episcopally organised Church became the main one and overshadowed the significance of the doctrine of faith as a bond of unity. _The Church based on the bishops, the successors of the Apostles, the vicegerents of God, is herself the legacy of the Apostles in virtue of this her foundation._ This idea was never converted into a rigid theory in the East, though the reality to which it corresponded was not the less certain on that account. The fancy that the earthly hierarchy was the image of the heavenly was the only part that began to be taken in real earnest. In the West, on the other hand, circumstances compelled the Carthaginian bishop to set up a finished theory.[171] According to Cyprian, the Catholic Church, to which all the lofty predictions and predicates in the Bible apply (see Hartel's index under "ecclesia"), is the one institution of salvation outside of which there is no redemption (ep. 73. 21). She is this, moreover, not only as the community possessing the true apostolic faith, for this definition does not exhaust her conception, but as a harmoniously organised federation.[172] This Church therefore rests