Leo also distinguished himself by writing a treatise on the Incarnation,--said to be the ablest which has come down to us from the primitive Church. He was one of those men who believed in theology as a series of divine declarations, to be cordially received whether they are fully grasped by the intellect or not. These declarations pertain to most momentous interests, and hence transcend in dignity any question which mere philosophy ever attempted to grasp, or physical science ever brought forward. In spite of the sneers of the infidels, or the attacks of _savans_, or the temporary triumph of false opinions, let us remember they have endured during the mighty conflicts of the last eighteen hundred years, and will endure through all the conflicts of ages,--the might, the majesty, and the glory of the kingdom of Christ. Whoever thus conserves truths so important is a great benefactor, whether neglected or derided, whether despised or persecuted. In addition to the labors of Leo to preserve the integrity of the received faith among the semi-barbaric western nations, his efforts were equally great to heal the disorders of the Church. He reformed ecclesiastical discipline in Africa, rent by Arian factions and Donatist schismatics. He curtailed the abuses of metropolitan tyranny in Gaul. He sent his legates to preside over the councils of Ephesus and Chalcedon. He sat in judgment between Vienna and Arles. He fought for the independence of the Church against emperors and barbaric chieftains. He encouraged literature and missions and schools and the spread of the Bible. He was the paragon of a bishop,--a man of transcendent dignity of character, as well as a Father of the Church Universal, of whom all Christendom should be proud.