Leonardo da Vinci

	"For Francesco del Giocondo Leonardo undertook to execute the portrait of his wife, Mona Lisa. He worked on this painting for four years and then still left it unfinished. If one wanted to see how faithfully art can imitate nature, one could readily perceive it from this head.." I-266 La Gioconda
	"While he was painting Mona Lisa, who was a very beautiful woman, he employed singers and musicians or jesters to keep her full of merriment. As a result, in this painting of Leonardo's there was a smile so pleasing that it seemed divine rather than human; and those who saw it were amazed to find that it was as alive as the original." I-267 La Gioconda (detail)
	"Leonardo began a work in the Hall of the Pope, in Santa Maria Novella, on a cartoon illustrating an incident in the life of Niccolo Piccinino. He showed a group of horsemen fighting for a standard, in a drawing which was regarded as very fine and successful becasue of the wonderful ideas he expressed in his interpretation of the battle." I-267 The Battle of Anghiari (copy of the lost original)
	"Leonardo showed his powers as a sculptor in the three bronze figures over the north door of San Giovanni which were executed by Giovanni Rustici under Leonardo's direction, and which as far as design and finish are concerned are the finest casts yet seen in modern times." I-271 St John preaching by Rustici, Baptistery, Florence
	"One of Leonardos' pupils was Giovanni Antonio Boltraffio, a very skilful and discerning artist, who did works at Milan and elsewhere." Virgin and Child by Boltraffio, Budapest