Grecian statuary commenced with ideal representations of deities, and was carried to the greatest perfection by Phidias in his statues of Jupiter and Minerva. Then succeeded the school of Praxiteles, in which the figures of gods and goddesses were still represented, but in mortal forms. The school of Lysippus was famous for the statues of celebrated men, especially in cities where Macedonian rulers resided. Artists were expected henceforth to glorify kings and powerful nobles and rulers by portrait statues. The plastic art then degenerated. Nor were works of original genius produced, but rather copies or varieties from the three great schools to which allusion has been made. Sculpture may have multiplied, but not new creations; although some imitations of great merit were produced, like the "Hermaphrodite," the "Torso," the Farnese "Hercules," and the "Fighting Gladiator." When Corinth was sacked by Mummius, some of the finest statues of Greece were carried to Rome, and after the civil war between Caesar and Pompey the Greek artists emigrated to Italy. The fall of Syracuse introduced many works of priceless value into Rome; but it was from Athens, Delphi, Corinth, Elis, and other great centres of art, that the richest treasures were brought. Greece was despoiled to ornament Italy. The Romans did not create a school of sculpture. They borrowed wholly from the Greeks, yet made, especially in the time of Hadrian, many beautiful statues. They were fond of this art, and all eminent men had statues erected to their memory. The busts of emperors were found in every great city, and Rome was filled with statues. The monuments of the Romans were even more numerous than those of the Greeks, and among them some admirable portraits are found. These sculptures did not express that consummation of beauty and grace, of refinement and sentiment, which marked the Greeks; but the imitations were good. Art had reached its perfection under Lysippus; there was nothing more to learn. Genius in that department could soar no higher. It will never rise to loftier heights. [Sidenote: Degeneracy of art among the Romans.] It is noteworthy that the purest forms of Grecian art arose in its earlier stages. In a moral point of view, sculpture declined from the time of Phidias. It was prostituted at Rome under the emperors. The specimens which have often been found among the ruins of ancient baths make us blush for human nature. The skill of execution did not decline for several centuries; but the lofty ideal was lost sight of, and gross appeals to human passions were made by those who sought to please corrupt leaders of society in an effeminate age. The turgidity and luxuriance of art gradually passed into tameness and poverty. The reliefs on the Arch of Constantine are rude and clumsy compared with those on the Column of Marcus Aurelius. [Sidenote: Imitation of ancient art.]