The task assigned to Michelangelo, when he planned the library, was not so simple as that of the new sacristy. Some correspondence took place before the west side of the cloister was finally decided on. What is awkward in the approach to the great staircase must be ascribed to the difficulty of fitting this building into the old edifice; and probably, if Michelangelo had carried out the whole work, a worthier entrance from the piazza into the loggia, and from the loggia into the vestibule, might have been devised.
Vasari, in a well-known passage of his Life of Michelangelo, reports the general opinion of his age regarding the novelties introduced by Buonarroti into Italian architecture. The art of building was in a state of transition. Indeed, it cannot be maintained that the Italians, after they abandoned the traditions of the Romanesque manner, advanced with certitude on any line of progress in this art. Their work, beautiful as it often is, ingenious as it almost always is, marked invariably by the individuality of the district and the builder, seems to be tentative, experimental. The principles of the Pointed Gothic style were never seized or understood by Italian architects. Even such cathedrals as those of Orvieto and Siena are splendid monuments of incapacity, when compared with the Romanesque churches of Pisa, S. Miniato, S. Zenone at Verona, the Cathedral of Parma. The return from Teutonic to Roman standards of taste, which marked the advent of humanism, introduced a hybrid manner. This, in its first commencement, was extremely charming. The buildings of Leo Battista Alberti, of Brunelleschi, and of Bramante are distinguished by an exquisite purity and grace combined with picturesqueness. No edifice in any style is more stately, and at the same time more musical in linear proportions, than the Church of S. Andrea at Mantua. The Cappella dei Pazzi and the Church of S. Spirito at Florence are gems of clear-cut and harmonious dignity. The courtyard of the Cancelleria at Rome, the Duomo at Todi, show with what supreme ability the great architect of Casteldurante blended sublimity with suavity, largeness and breadth with naïveté and delicately studied detail. But these first endeavours of the Romantic spirit to assimilate the Classic mannerism--essays no less interesting than those of Boiardo in poetry, of Botticelli in painting, of Donatello and Omodei in sculpture--all of them alike, whether buildings, poems, paintings, or statues, displaying the genius of the Italic race, renascent, recalcitrant against the Gothic style, while still to some extent swayed by its influence (at one and the same time both Christian and chivalrous, Pagan and precociously cynical; yet charmingly fresh, unspoiled by dogma, uncontaminated by pedantry)--these first endeavours of the Romantic spirit to assimilate the Classic mannerism could not create a new style representative of the national life. They had the fault inherent in all hybrids, however fanciful and graceful. They were sterile and unprocreative. The warring elements, so deftly and beautifully blent in them, began at once to fall asunder. The San Galli attempted to follow classical precedent with stricter severity. Some buildings of their school may still be reckoned among the purest which remain to prove the sincerity of the Revival of Learning. The Sansovini exaggerated the naïveté of the earlier Renaissance manner, and pushed its picturesqueness over into florid luxuriance or decorative detail. Meanwhile, humanists and scholars worked slowly but steadily upon the text of Vitruvius, impressing the paramount importance of his theoretical writings upon practical builders. Neither students nor architects reflected that they could not understand Vitruvius; that, if they could understand him, it was by no means certain he was right; and that, if he was right for his own age, he would not be right for the sixteenth century after Christ. It was just at this moment, when Vitruvius began to dominate the Italian imagination, that Michelangelo was called upon to build. The genial adaptation of classical elements to modern sympathies and uses, which had been practised by Alberti, Brunelleschi, Bramante, yielded now to painful efforts after the appropriation of pedantic principles. Instead of working upon antique monuments with their senses and emotions, men approached them through the medium of scholastic erudition. Instead of seeing and feeling for themselves, they sought by dissection to confirm the written precepts of a defunct Roman writer. This diversion of a great art from its natural line of development supplies a striking instance of the fascination which authority exercises at certain periods of culture.