Now Leo was the man for such a crisis, and seems to have been raised up to devise some new principle of conservation around which the stricken world might rally. "He stood equally alone and superior," says Milman, "in the Christian world. All that survived of Rome--of her unbounded ambition, of her inflexible will, and of her belief in her title to universal dominion--seemed concentrated in him alone."
Leo was born, in the latter part of the fourth century, at Rome, of noble parents, and was intensely Roman in all his aspirations. He early gave indications of future greatness, and was consecrated to a service in which only talent was appreciated. When he was nothing but an acolyte, whose duty it was to light the lamps and attend on the bishop, he was sent to Africa and honored with the confidence of the great Bishop of Hippo. And he was only deacon when he was sent by the Emperor Valentinian III. to heal the division between Aëtius and Albinus,--rival generals, whose dissensions compromised the safety of the Empire. He was absent on important missions when the death of Sixtus, A.D. 440, left the Papacy without a head. On Leo were all eyes now fixed, and he was immediately summoned by the clergy and the people of Rome, in whom the right of election was vested, to take possession of the vacant throne. He did not affect unworthiness like Gregory in later years, but accepted at once the immense responsibility.
I need not enumerate his measures and acts. Like all great and patriotic statesmen he selected the wisest and ablest men he could find as subordinates, and condescended himself to those details which he inexorably exacted from others. He even mounted the neglected pulpit of his metropolitan church to preach to the people, like Chrysostom and Gregory Nazianzen at Constantinople. His sermons are not models of eloquence or style, but are practical, powerful, earnest, and orthodox. Athanasius himself was not more evangelical, or Ambrose more impressive. He was the especial foe of all the heresies which characterized the age. He did battle with all who attempted to subvert the Nicene Creed. Those whom he especially rebuked were the Manicheans,--men who made the greatest pretension to intellectual culture and advanced knowledge, and yet whose lives were disgraced not merely by the most offensive intellectual pride, but the most disgraceful vices; men who confounded all the principles of moral obligation, and who polluted even the atmosphere of Rome by downright Pagan licentiousness. He had no patience with these false philosophers, and he had no mercy. He even complained of them to the emperor, as Calvin did of Servetus to the civil authorities of Geneva (which I grant was not to his credit); and the result was that these dissolute and pretentious heretics were expelled from the army and from all places of trust and emolument.