Jesus was one of the great spiritual geniuses of the race,—so far as we know, the greatest. The highest ideas of Judaism he sublimated, intensified, and expressed in universal forms. Indifferent to the ceremonial of his people, he taught that the essence of religion lay in spirit and in conduct.

The holy and awful Deity was to him a tender Father. The whole duty of man to man was love. Chastity of the body was exalted to purity of the heart. He lived close to the common people; taught, helped, healed them; caressed their children, pitied their outcasts, laid hands on the lepers, and calmed the insane. He brooded on the expectation of some great future which earlier seers had impressed on the popular thought, and saw as in prophetic vision the near approach of the perfect triumph of holiness and love. Overshadowed by danger, his hope and faith menaced as by denying Fate, he rallied from the shock, trusted the unseen Power, and went serenely to a martyr's death.

Jesus had roused a passion of personal devotion among the poor, the ignorant, the true-hearted whom he had taught and called. When he was dead, that devotion flamed out in the assertion, He lives again! We have seen him! He will speedily return! The Jewish belief in a bodily resurrection and a Messianic kingdom gave form to this faith, and unbounded love and imagination gave intensity and vividness. That Jesus was risen from the dead became the cardinal article of the new society which grew up around his grave. His moral precepts, his parables, his acts, his personality,—the personality of one who was alike the child of God and the friend of sinners,—these were enshrined in a new mythology. A society, enthusiastic, aggressive; at first divided into factions; then blending in a common creed and rule of life; a loyalty to an invisible leader; a sanguine hope of speedy triumph, cooling into more remote expectation, and in the finer spirits transforming into a present spiritual communion; a growing elaboration of organization, priesthood, ritual, mythology; a diffusion through vast masses of people of the new religion, and a corresponding depreciation of its quality,—this was the early stage of Christianity. It vanquished and destroyed the Greek-Roman mythology, already half dead. Philosophy strove with it in vain,—there was no real meeting-ground between the two systems. The final appeal of the Stoic was to reason. The Christian theologians thought they reasoned, but their argumentation was feeble save at one point. But that was the vital point,—experience. Christianity, in its mixture of ardor, credulity, and morality had somehow a power to give to common men and women a nobility and gladness of living which Stoicism could not inspire in them. So it was the worthier of the two antagonists that triumphed in the strife.

Ideally, there ought to have been no strife. Christianity and ethical philosophy ought to have worked side by side, until the religion of Reason and the religion of Love understood each other and blended in one. Destined they were to blend, but not for thousands of years. The new religion brooked no rivalry and no rebellion. It swayed the world despotically, but the beginning and secret of its power was that it had captured the world's heart. Its best watchwords were Faith, Hope, Love.

In a word, civilized mankind, having outgrown the earlier nature-worship, and having found the philosophic reason inadequate to provide a satisfying way of life, accepted a new mythology, because it was inspired by ideas which were powerful to guide, to inspire, and to console. For many centuries we shall look in vain for any serious study of human life except in conformity to the Christian mythology.

The Roman world was submerged by the invasion of the northern tribes. There was a violent collision of peoples, manners, sentiments, usages; a subversion of the luxurious, intelligent, refined, and effete civilization; a rough infusion of barbaric vigor and barbaric ignorance. The marvelous conflict, commingling, and emergence of a thousand years, through which the classic society was replaced by the mediaeval society, cannot even be summarized in these brief paragraphs. The point on which our theme requires attention is that the religion of this period had its form and substance in the Catholic church; and of this church the twin aspects were an authoritative government administered by popes, councils, bishops, and priests, and a conception of the supernatural world equally definite and authoritative, which dominated the intellects and imaginations of man with its Hell, Purgatory, and Heaven. The visible church and the invisible world of which the church held the interpretation and the key,—this concrete fact, and this faith the counterpart of the fact, were the bases and pillars of the religion of Europe for many centuries.

We are not required to balance the merits and faults of this mediaeval religion. It was a mighty power, so long as it commanded the unquestioning intellectual assent of the world, and so long as upon the whole it exemplified and enforced, beyond any other human agency, the highest moral and spiritual ideals men knew.

Its supremacy was favored by the complete subordination of all intellectual life which was an incident of the barbaric conquest and the feudal society which followed. Even before those events the human intellect seemed to flag. The old classicism and the new Christianity never so wedded as to produce either an adequate civic virtue or a great intellectual movement. In the Dark Ages which followed, learning shrank into the narrow channels of the cloister, and literature almost ceased as a creative force. For almost a thousand years—from Augustine to Dante—Europe scarcely produced a book which has high intrinsic value for our time. When intellectual energy woke again in Italy and then in the North, the ecclesiastical conception had inwrought itself in human thought.

Along with authority and dogmas there developed an elaborate ceremonial, appealing through the senses to the imagination and the spiritual sense. For the multitude it involved a habitual confusion of the symbol with the substance of religion. In an age when the highest minds lived in an atmosphere of profound ignorance, and philosophy was childish, there was wrought out the full doctrine of the Mass and its accompaniments,—a literal transformation of the bread and wine of the sacrament into the body and blood of Christ, powerful to impart a saving grace. The power to work this miracle was the supreme weapon of the priesthood.

We may glance at the mediaeval religion in its culmination in the three figures of Dante, Francis of Assisi, and Thomas à Kempis. À Kempis shows religion fled from the active world with its strifes and temptations, sedulously cultivating a pure, devout, unworldly virtue; feeding on the contemplation of heavenly splendors and infernal horrors; self-centred and inglorious. The opposite type is Frances, a joyful prophet of glad tidings to the poor; ardent, sympathetic, heroic; touched with the beauty of nature and the appeal of the animal creation; exalting simplicity and poverty like an ancient philosopher; seeking the needy and sorrowful like Jesus of Nazareth; but with no spiritual originality like Jesus, no power to create a new religion; strong only to revive the best elements of the traditional faith, and to organize a society which erelong sank back to the general level of the church.