"This method [of painting by Titian] has been the reason that many, wishing to imitate him therein and to play the practised master, have painted clumsy pictures; and this happens because, although many believe that they are done without effort, in truth it is not so, and they deceive themselves, for it is known that they are painted over and over again, and that he [Titian] returned to them with his colours so many times, that the labour may be perceived. And this method, so used, is judicious, beautiful, and astonishing, because it makes pictures appear alive and painted with great art, but conceals the labor."