Giorgio Vasari, Lives of the Most Excellent Painters… (1850)
“ But there are those, on the contrary, who, making profession of friendly intimacy, and assuming the guise of truth and affection, yet, through envy and malice, falsify their ideas, whereby the arts are prevented from reaching the perfection which they might attain if all inventive minds were bound in that brotherly affection which truly did unite Gaddo Gaddi to Cimabue, as also Andrea Tafi to Gaddo Gaddi. ”
