Yet we have no reason to believe that, at the beginning of the sixteenth century, the Castilian was in any respect inferior to the Englishman. Our firm belief is, that the North owes its great civilization and prosperity chiefly to the moral effect of the Protestant Reformation, and that the decay of the Southern countries of Europe is to be mainly ascribed to the great Catholic revival. About a hundred years after the final settlement of the boundary line between Protestantism and Catholicism, began to appear the signs of the fourth great peril of the Church of Rome. The storm which was now rising against her was of a very different kind from those which had preceded it. Those who had formerly attacked her had questioned only a part of her doctrines. A school was now growing up which rejected the whole. The Albigenses, the Lollards, the Lutherans, the Calvinists, had a positive religious system, and were strongly attached to it. The creed of the new sectaries was altogether negative. They took one of their premises from the Protestants, and one from the Catholics. From the latter they borrowed the principle, that Catholicism was the only pure and genuine Christianity. With the former, they held that some parts of the Catholic system were contrary to reason. The conclusion was obvious. Two propositions, each of which separately is compatible with the most exalted piety, formed, when held in conjunction, the groundwork of a system of irreligion. The doctrine of Bossuet, that transubstantiation is affirmed in the Gospel, and the doctrine of Tillotson, that transubstantiation is an absurdity, when put together, produced by logical necessity the inferences of Voltaire.