This harmony, therefore, between the intellectual and the merely beautiful—the very perfection of the science of taste—the Greeks sought not by perilous experiments to disturb. Not that among them the vigor of independent genius was cramped; proper latitude of composition being allowed, licentiousness of fancy was restrained; each artist thought, in due subordination to the principles of a system which he knew to be as unchangeable as the laws that ensured the stability of his edifice. Hence, in every remain of Greek art, something peculiar is discoverable—some exquisite adaptation of parts to circumstances—to proportion—to feeling; but this never obtrudes—never is the general symmetry, or prevailing character, in the least interrupted. Even the orders observe the same law of composition. They are but variations of one grand abstraction of stability and grace, which may be termed the ideal of architecture. Each varies from another in detail, but the result is one and the same concord; the proportions in each differ, but the analogies of proportion are in all cases congenial. Even when, by addition or absence of parts, there is discriminative form, still the same final result of purpose or propriety is evident. In all, the same master lines meet the eye, guide the comprehension over all divisions, and bind the entire design into one grand harmonious whole. Similar means and similar harmonies everywhere occur; the same in all is the last impress on the mind of symmetry and majestic repose—of grace and dignity—of steadfast tranquillity—of unlaboured elegance—and of rich simplicity.
The system in this, its perfect wholeness, the Romans never conceived, and upon this entireness their style first broke. They appear to have deemed that lightness and grace, here the great objects of their pursuit, were to be attained not so much by proportion between the vertical and horizontal, as by comparative slenderness in the former. Hence, in the very outset, is detected a poverty in the Roman architecture, even in the midst of profuse ornament, which, as we advance, continually increases with the practice whence it originated. The great error was a constant aim to lessen the diameter, while they increased the elevation, of the columns and supporting members generally—an error, as remarked by Plutarch, 'to a Greek eye' perceptible so early as the reign of Domitian. Hence the incongruities of the Roman orders, which yet are mere plagiarisms from the Greek, and upon this defective principle.
The massive simplicity and severe grandeur of the ancient Doric, disappear in the Roman, the characteristics of the order being frittered down into a multiplicity of minute members. This division is not only in itself injurious to the simple idea of strength, but the parts are separately composed in ignorance of the primitive intention. To their two more refined orders, the Ionic and Corinthian, the Greeks always added a base, to unite them sweetly and gracefully with the plinth step, or floor; to the Doric, this accessory was always denied, that strong contrast might lead the eye at once from the support to the firm position of the vertical shaft—thus apparently still more securely planted, as resting immediately on the solid platform of the building. In opposition to these obvious principles, the Romans used the Doric always with a base, composed, too, of various members; while in the capital they erred still more against propriety. The Doric capital of the Greeks is a masterpiece of composition;—formed of few and bold, yet graceful parts, it leads by degrees of increasing strength to the surmounting entablature, which, with its triglyphs and sculptured metopes, seems to the eye yet more ponderous—ready to crush the starved and fluttering members, fillet above fillet, which compose the capital of the Roman pillar. The Corinthian is the only order which the Romans have employed with almost the undiminished grace of the original; but even here is distinctly to be traced the pernicious effects of their system. In the Ionic, they have left comparatively few examples, while, still following out their principle, they added to the length of the shaft, and flattened the capital, thus losing much of the simple yet stately elegance which distinguishes this order. Their own Composite is in some measure a combination of the Ionic and the Corinthian, having the volutes of the former and the foliage of the latter, upon which it is anything but an improvement, since it contradicts the character, and in a great degree opposes the advantages, of the primitive. As far, then, as concerns the invention of forms, and the just conception of the elemental modes of Greece, the Romans failed. Their architecture was imperfect, both as a system of symmetry, and as a science founded upon truth and upon taste.
But when their labours are viewed as regards the practice of the art, their merits are presented under a far different aspect. Whether the magnitude, the utility, the varied combinations, or the novel and important evidences of their knowledge, be considered, the Romans, in their practical works, are yet unrivalled. They here created their own models, while they have remained examples to their successors. Though not the inventors of the arch, they, of all the nations of antiquity, first discovered and boldly applied its powers; nor is there one dignified principle in its use which they have not elicited. Rivers are spanned; the sea itself, as at Ancona, is thus enclosed within the cincture of masonry; nay, streams were heaved into air, and, borne aloft through entire provinces, poured into the capital their floods of freshness, and health. The self-balanced dome, extending a marble firmament over head, the proudest boast of modern skill, has yet its prototype and its superior in the Pantheon—
Relic of nobler days and noblest arts!
Despoil'd, yet perfect, with thy circle spreads
A holiness appealing to all hearts—
To art a model.
The same stupendous and enduring character pervaded all the efforts of Roman art, even in those instances where more ancient principles only were brought into action. Where the Greeks were forced to call the operations of nature in aid of the weakness of art, availing themselves of some hollow mountain side for the erection of places of public resort, the imperial masters of Rome caused such mountains to be reared of masonry, within their capital, for the Theatre, Amphitheatre, and Circus. Of these vast structures, where assembled multitudes might sit uncrowded, the Colosseum—the mightiest indeed, yet only one of the labours of the reign in which it was raised—contains more solid material, brought too from far, and exquisitely wrought, than all the works of either Louis XIV., or the Czar Peter—the two greatest builders among the sovereigns of modern times:
From its mass,
Walls, palaces, half cities, have been rear'd;
Yet oft the enormous skeleton ye pass,
And marvel where the spoil could have appear'd.
Palaces—Temples—Baths—Porticos—Arches of Triumph—Commemorative Pillars—Basilica, or Halls of Justice—Fora, or Squares—Bridges—without mentioning the astonishing highways, extending to the extremities of the empire—all were constructed on the same grand and magnificent plan. The art, in every part of its practice, partook of the national character of the people. Its applications were great, substantial, and useful—beautiful in execution, but this beauty dignified yet more as subservient to utility. The highest conceivable grandeur seemed but necessary, as commensurate with the wants and the durability of a dominion which was to be universal and eternal. Roman art has, in these respects, a character almost of moral dignity beyond all relics of antiquity. The records of their dead, though erections of more equivocal usefulness, partake of the same style, and, like the pyramids of Egyptian kings, have ceased to be monuments save of their own greatness. Some, and those but of individuals, or even a woman's grave, as towers of strength have rolled back the shock of feudal warfare; and the tomb of an emperor, turned into a palace, or a fortress, still overawes the city of the Cæsars.
But, alas! the passing briefness of all things sublunary! The spirit's homage to this mightiness of mind and power, is due only to the labours of little more than a century and a half. The very greatness of these edifices proved a source of after corruption, by withdrawing attention from the delicacies of composition, and by substituting brute mass for the refinements of science. Even under the Antonines, decline from the age of Hadrian is perceptible—though more in taste than in practice. Under Commodus, architecture suffered most decided degradation—another proof how steadily the arts reflect, not only the mental, but the moral energies of the times. The downward impulse hurries onwards, occasionally stayed by the personal virtues or activities of the reigning prince. Severus has thus left evidence how far his age had fallen, and yet how superior to those that follow! between his triumphal arch and that of Titus, how great the difference!—yet, in point of design, far less than between his and Constantine's. The last splendours of Roman skill were elicited by the talents of Dioclesian, and great appear still to have been the practical resources of architecture—greater than usually admitted. The circular Hall in his Baths is inferior only to the Pantheon, and awakened the enthusiasm of Michael Angelo; his Dalmatian Palace was the finest building undertaken for twelve succeeding centuries. Few of the qualities which can ennoble the art, as an object of taste, survived this period. The works of Constantine, not excepting the founding of a capital, prove how complete was the lapse, since even his zeal could call forth only attempts to ungraceful and ineffective.