But it was not in poetry alone that the life of Italy found expression. Before the invention of printing,--which gave to the literary arts such an advantage as secured their pre-eminence,--architecture, sculpture, and painting were hardly less important means for the expression of the ideals of the imagination and the creative energy of man. The practice of them had never wholly ceased in Italy; but her native artists had lost the traditions of technical skill; their work was rude and childish. The conventional and lifeless forms of Byzantine art in its decline were adopted by workmen who no longer felt the impulse, and no longer possessed the capacity, of original design. Venice and Pisa, early enriched by Eastern commerce, and with citizens both instructed and inspired by knowledge of foreign lands, had begun great works of building even in the eleventh century; but these works had been designed, and mainly executed, by masters from abroad. But now the awakened soul of Italy breathed new life into all the arts in its efforts at self-expression. A splendid revival began. The inspiring influence of France was felt in the arts of construction and design as it had been felt in poetry. The magnificent display of the highest powers of the imagination and the intelligence in France, the creation during the twelfth and early thirteenth centuries of the unrivaled productions of Gothic art, stimulated and quickened the growth of the native art of Italy. But the French forms were seldom adopted for direct imitation, as the forms of Provençal poetry had been. The power of classic tradition was strong enough to resist their attraction. The taste of Italy rejected the marvels of Gothic design in favor of modes of expression inherited from her own past, but vivified with fresh spirit, and adapted to her new requirements. The inland cities, as they grew rich through native industry and powerful through the organization of their citizens, were stirred with rivalry to make themselves beautiful, and the motives of religion no less than those of civic pride contributed to their adornment. The Church was the object of interest common to all. Piety, superstition, pride, emulation, all alike called for art in which their spirit should be embodied. The imagination answered to the call. The eyes of the artist were once more opened to see the beauty of life, and his hand sought to reproduce it. The bonds of tradition were broken. The Greek marble vase on the platform of the Duomo at Pisa taught Niccola Pisano the right methods of sculpture, and directed him to the source of his art in the study of nature. His work was a new wonder and delight, and showed the way along which many followed him. Painting took her lesson from sculpture, and before the end of the century both arts had become responsive to the demand of the time, and had entered upon that course of triumph which was not to end till, three centuries later, chisel and brush dropped from hands enfeebled in the general decline of national vigor, and incapable of resistance to the tyrannous and exclusive autocracy of the printed page.