““As Giotto’s fame grew, the pope sent a representative to Tuscany to learn more about the artist and his work. When asked for a sample to take to the pontiff, Giotto dipped a brush in red, pressed his arm to his side to make a compass of it, and with a turn of his hand made an impeccable circle on a piece of paper. “Am I to have no other drawing than this one?” the flummoxed courtier asked. “It’s more than sufficient,” answered Giotto. As soon as the pope learned how Giotto had created the sample, he immediately realized that the artist did indeed surpass all other painters of his time. As this tale spread, it gave rise to the expression “più tondo dell’O di Giotto” (“rounder than Giotto’s O”), for someone slow or dense.””
