We by no means deny the benefits which the Christian-Catholic theories effected in Europe. They were needed as a wholesome reaction against the terrible colossal materialism which was developed in the Roman Empire, and threatened the annihilation of all the intellectual grandeur of mankind. Just as the licentious memoirs of the last century form the _pièces justificatives_ of the French Revolution; just as the reign of terror seems a necessary medicine when one is familiar with the confessions of the French nobility since the regency; so the wholesomeness of ascetic spirituality becomes manifest when we read Petronius or Apuleius, books which may be considered as _pièces justificatives_ of Christianity. The flesh had become so insolent in this Roman world that Christian discipline was needed to chasten it. After the banquet of a Trimalkion, a hunger-cure, such as Christianity, was required. Or did, perhaps, the hoary sensualists seek by scourgings to stimulate the cloyed flesh to renewed capacity for enjoyment? Did aging Rome submit to monkish flagellations in order to discover exquisite pleasure in torture itself, voluptuous bliss in pain? Unfortunate excess! it robbed the Roman body-politic of its last energies. Rome was not destroyed by the division into two empires. On the Bosphorus as on the Tiber, Rome was eaten up by the same Judaic spiritualism, and in both Roman history became the record of a slow dying-away, a death agony that lasted for centuries. Did perhaps murdered Judea, by bequeathing its spiritualism to the Romans, seek to avenge itself on the victorious foe, as did the dying centaur, who so cunningly wheedled the son of Jupiter into wearing the deadly vestment poisoned with his own blood? In truth, Rome, the Hercules among nations, was so effectually consumed by the Judaic poison that helm and armour fell from its decaying limbs, and its imperious battle tones degenerated into the prayers of snivelling priests and the trilling of eunuchs. But that which enfeebles the aged strengthens the young. That spiritualism had a wholesome effect on the over-robust races of the north; the ruddy barbarians became spiritualised through Christianity; European civilisation began. This is a praiseworthy and sacred phase of Christianity. The Catholic Church earned in this regard the highest title to our respect and admiration. Through grand, genial institutions it controlled the bestiality of the barbarian hordes of the North, and tamed their brutal materialism. The works of art in the middle ages give evidence of this mastery of matter by the spirit; and that is often their whole purpose. The epic poems of that time may be easily classified according to the degree in which they show that mastery. Of lyric and dramatic poems nothing is here to be said; for the latter do not exist, and the former are comparatively as much alike in all ages as are the songs of the nightingales in each succeeding spring.