«The Byzantines are the nation most skilled in painting…Their artists paint human beings without omitting a single detail, for the Byzantine painter is not satisfied with a painting until he has transformed the figure into a youth, a mature man, or a dotard; he next makes his subject handsome and charming and then mirthful or lachrymose. In his painting the artist even manages to distinguish between a sarcastic smile and a shy one and between gaiety and the laughter of the delirious.»