Michelagnolo was much inclined to the labours of art, seeing that everything, however difficult, succeeded with him, he having had from nature a genius very apt and ardent in these most noble arts of design. Moreover, in order to be entirely perfect, innumerable times he made anatomical studies, dissecting men's bodies in order to see the principles of their construction and the concatenation of the bones, muscles, veins, and nerves, the various movements and all the postures of the human body; and not of men only, but also of animals, and particularly of horses, which last he much delighted to keep. Of all these he desired to learn the principles and laws in so far as touched his art, and this knowledge he so demonstrated in the works that fell to him to handle, that those who attend to no other study than this do not know more. He so executed his works, whether with the brush or with the chisel, that they are almost inimitable, and he gave to his labours, as has been said, such art and grace, and a loveliness of such a kind, that (be it said without offence to any) he surpassed and vanquished the ancients; having been able to wrest things out of the greatest difficulties with such facility, that they do not appear wrought with effort, although whoever draws his works after him finds enough in imitating them. The genius of Michelagnolo was recognized in his lifetime, and not, as happens to many, after death, for it has been seen that Julius II, Leo X, Clement VII, Paul III, Julius III, Paul IV, and Pius IV, all supreme Pontiffs, always wished to have him near them, and also, as is known, Suleiman, Emperor of the Turks, Francis of Valois, King of France, the Emperor Charles V, the Signoria of Venice, and finally, as has been related, Duke Cosimo de' Medici; all offering him honourable salaries, for no other reason but to avail themselves of his great genius. This does not happen save to men of great worth, such as he was; and it is evident and well known that all these three arts were so perfected in him, that it is not found that among persons ancient or modern, in all the many years that the sun has been whirling round, God has granted this to any other but Michelagnolo. He had imagination of such a kind, and so perfect, and the things conceived by him in idea were such, that often, through not being able to express with the hands conceptions so terrible and grand, he abandoned his works--nay, destroyed many of them; and I know that a little before he died he burned a great number of designs, sketches, and cartoons made with his own hand, to the end that no one might see the labours endured by him and his methods of trying his genius, and that he might not appear less than perfect. Of such I have some by his hand, found in Florence, and placed in my book of drawings; from which, although the greatness of that brain is seen in them, it is evident that when he wished to bring forth Minerva from the head of Jove, he had to use Vulcan's hammer.