The punishment of the enervated and sensual Roman was by war. We in America do not fear this calamity, and have no present cause of fear, because we have not sunk to the weakness and wickedness of the Romans, and because we have no powerful external enemies. But if amid our magnificent triumphs of science and art, we should accept the Epicureanism of the ancients and fall into their ways of life, then there would be the same decline which marked them,--I mean in virtue and public morality,--and there would be the same penalty; not perhaps destruction from external enemies, as in Persia, Syria, Greece, and Rome, but some grievous and unexpected series of catastrophes which would be as mournful, as humiliating, as ruinous, as were the incursions of the Germanic races. The operations of law, natural and moral, are uniform. No individual and no nation can escape its penalty. The world will not be destroyed; Christianity will not prove a failure,--but new forces will arise over the old, and prevail. Great changes will come. He whose right it is to rule will overturn and overturn: but "creation shall succeed destruction; melodious birth-songs will come from the fires of the burning phoenix," assuring us that the progress of the race is certain, even if nations are doomed to a decline and fall whenever conservative forces are not strong enough to resist the torrent of selfishness, vanity, and sin. AUTHORITIES. The original authorities are Ammianus Marcellinus, Zosimus, Sozomen, Socrates, orations of Gregory Nazianzen, Theodoret, the Theodosian Code, Sulpicius Severus, Life of Martin of Tours, Life of Ambrose by Paulinus, Augustine's "De Civitate Dei," Epistles of Ambrose; also those of Jerome; Claudien. The best modern authorities are Tillemont's History of the Emperors; Gibbon's Decline and Fall; Milmans's History of Christianity; Neander; Sheppard's Fall of Rome; and Flécier's Life of Theodosius. There are several popular Lives of Theodosius in French, but very few in English. LEO THE GREAT. * * * * * A.D. 390-461. FOUNDATION OF THE PAPACY.