Giorgio Vasari, Lives of the Most Excellent Painters… (1850)
“ It is indeed certain, that if artists, who have been endowed as was Andrea da Fiesole, had united a knowledge of drawing to their admirable facility and good judgment, they would have far surpassed those who, though drawing perfectly, yet, when they come to execute their designs, do but scratch the marble, and, notwithstanding all their efforts, put an end to their work in a very poor manner, for the want of practice, and because they cannot use the chisels with the requisite ability. ”
