It was necessary in the first place firmly to apprehend the truth that the final end of all art is the presentation of a spiritual content; it is necessary in the next place to remove confusions by considering the special circumstances of the several arts.
Each art has its own vehicle of presentation. What it can present and how it must present it, depends upon the nature of this vehicle. Thus, though architecture, sculpture, painting, music, poetry, meet upon the common ground of spiritualised experience—though the works of art produced by the architect, sculptor, painter, musician, poet, emanate from the spiritual nature of the race, are coloured by the spiritual nature of the men who make them, and express what is spiritual in humanity under concrete forms invented for them by the artist—yet it is certain that all of these arts do not deal exactly with the same portions of this common material in the same way or with the same results. Each has its own department. Each exhibits qualities of strength and weakness special to itself. To define these several departments, to explain the relation of these several vehicles of presentation to the common subject-matter, is the next step in criticism.
Of the fine arts, architecture alone subserves utility. We build for use. But the geometrical proportions which the architect observes, contain the element of beauty and powerfully influence the soul. Into the language of arch and aisle and colonnade, of cupola and façade and pediment, of spire and vault, the architect translates emotion, vague perhaps but deep, mute but unmistakable. When we say that a building is sublime or graceful, frivolous or stern, we mean that sublimity or grace, frivolity or sternness, is inherent in it. The emotions connected with these qualities are inspired in us when we contemplate it, and are presented to us by its form. Whether the architect deliberately aimed at the sublime or graceful—whether the dignified serenity of the Athenian genius sought to express itself in the Parthenon, and the mysticism of mediæval Christianity in the gloom of Chartres Cathedral—whether it was Renaissance paganism which gave its mundane pomp and glory to S. Peter's, and the refined selfishness of royalty its specious splendour to the palace of Versailles—need not be curiously questioned. The fact that we are impelled to raise these points, that architecture more almost than any art connects itself indissolubly with the life, the character, the moral being of a nation and an epoch, proves that we are justified in bringing it beneath our general definition of the arts. In a great measure because it subserves utility, and is therefore dependent upon the necessities of life, does architecture present to us through form the human spirit. Comparing the palace built by Giulio Romano for the Dukes of Mantua with the contemporary castle of a German prince, we cannot fail at once to comprehend the difference of spiritual conditions, as these displayed themselves in daily life, which then separated Italy from the Teutonic nations. But this is not all. Spiritual quality in the architect himself finds clear expression in his work. Coldness combined with violence marks Brunelleschi's churches; a certain suavity and well-bred taste the work of Bramante; while Michelangelo exhibits wayward energy in his Library of S. Lorenzo, and Amadeo self-abandonment to fancy in his Lombard chapels. I have chosen examples from one nation and one epoch in order that the point I seek to make, the demonstration of a spiritual quality in buildings, may be fairly stated.
Sculpture and painting distinguish themselves from the other fine arts by the imitation of concrete existences in nature. They copy the bodies of men and animals, the aspects of the world around us, and the handiwork of men. Yet, in so far as they are rightly arts, they do not make imitation an object in itself. The grapes of Zeuxis at which birds pecked, the painted dog at which a cat's hair bristles—if such grapes or such a dog were ever put on canvas—are but evidences of the artist's skill, not of his faculty as artist. These two plastic, or, as I prefer to call them, figurative arts, use their imitation of the external world for the expression, the presentation of internal, spiritual things. The human form is for them the outward symbol of the inner human spirit, and their power of presenting spirit is limited by the means at their disposal.
Sculpture employs stone, wood, clay, the precious metals, to model forms, detached and independent, or raised upon a flat surface in relief. Its domain is the whole range of human character and consciousness, in so far as these can be indicated by fixed facial expression, by physical type, and by attitude. If we dwell for an instant on the greatest historical epoch of sculpture, we shall understand the domain of this art in its range and limitation. At a certain point of Greek development the Hellenic Pantheon began to be translated by the sculptors into statues; and when the genius of the Greeks expired in Rome, the cycle of their psychological conceptions had been exhaustively presented through this medium. During that long period of time, the most delicate gradations of human personality, divinised, idealised, were presented to the contemplation of the consciousness which gave them being, in appropriate types. Strength and swiftness, massive force and airy lightness, contemplative repose and active energy, voluptuous softness and refined grace, intellectual sublimity and lascivious seductiveness—the whole rhythm of qualities which can be typified by bodily form—were analysed, selected, combined in various degrees, to incarnate the religious conceptions of Zeus, Aphrodite, Herakles, Dionysus, Pallas, Fauns and Satyrs, Nymphs of woods and waves, Tritons, the genius of Death, heroes and hunters, lawgivers and poets, presiding deities of minor functions, man's lustful appetites and sensual needs. All that men think, or do, or are, or wish for, or imagine in this world, had found exact corporeal equivalents. Not physiognomy alone, but all the portions of the body upon which the habits of the animating soul are wont to stamp themselves, were studied and employed as symbolism. Uranian Aphrodite was distinguished from her Pandemic sister by chastened lust-repelling loveliness. The muscles of Herakles were more ponderous than the tense sinews of Achilles. The Hermes of the palæstra bore a torso of majestic depth; the Hermes, who carried messages from heaven, had limbs alert for movement. The brows of Zeus inspired awe; the breasts of Dionysus breathed delight.
A race accustomed, as the Greeks were, to read this symbolism, accustomed, as the Greeks were, to note the individuality of naked form, had no difficulty in interpreting the language of sculpture. Nor is there now much difficulty in the task. Our surest guide to the subject of a basrelief or statue is study of the physical type considered as symbolical of spiritual quality. From the fragment of a torso the true critic can say whether it belongs to the athletic or the erotic species. A limb of Bacchus differs from a limb of Poseidon. The whole psychological conception of Aphrodite Pandemos enters into every muscle, every joint, no less than into her physiognomy, her hair, her attitude.
There is, however, a limit to the domain of sculpture. This art deals most successfully with personified generalities. It is also strong in the presentation of incarnate character. But when it attempts to tell a story, we often seek in vain its meaning. Battles of Amazons or Centaurs upon basreliefs, indeed, are unmistakable. The subject is indicated here by some external sign. The group of Laocoon appeals at once to a reader of Virgil, and the divine vengeance of Leto's children upon Niobe is manifest in the Uffizzi marbles. But who are the several heroes of the Æginetan pediment, and what was the subject of the Pheidian statues on the Parthenon? Do the three graceful figures of a basrelief which exists at Naples and in the Villa Albani, represent Orpheus, Hermes, and Eurydice, or Antiope and her two sons? Was the winged and sworded genius upon the Ephesus column meant for a genius of Death or a genius of Love?
This dimness of significance indicates the limitation of sculpture, and inclines some of those who feel its charm to assert that the sculptor seeks to convey no intellectual meaning, that he is satisfied with the creation of beautiful form. There is sense in this revolt against the faith which holds that art is nothing but a mode of spiritual presentation. Truly the artist aims at producing beauty, is satisfied if he conveys delight. But it is impossible to escape from the certainty that, while he is creating forms of beauty, he means something; and that something, that theme for which he finds the form, is part of the world's spiritual heritage. Only the crudest works of plastic art, capricci and arabesques, have no intellectual content; and even these are good in so far as they convey the playfulness of fancy.