“The messenger,” continues Vasari, “when on his way to visit Giotto, and to inquire what other good masters there were in Florence, spoke first with many artists in Siena⁠—then, having received designs from them, he proceeded to Florence, and repaired one morning to the workshop where Giotto was occupied with his labors. He declared the purpose of the Pope, and the manner in which that Pontiff desired to avail himself of his assistance; and, finally, requested to have a drawing, that he might send it to his Holiness, Giotto, who was very courteous, took a sheet of paper and a pencil dipped in a red color, then, resting his elbow on his side, to form a sort of compass, with one turn of the hand he drew a circle, so perfect and exact that it was a marvel to behold. This done, he turned smiling to the courtier, saying, ‘Here is your drawing.’ ‘Am I to have nothing more than this?’ inquired the latter, conceiving himself to be jested with. ‘That is enough and to spare,’ returned Giotto; ‘send it with the rest, and you will see if it will be recognized.’ The messenger, unable to obtain anything more, went away very ill satisfied, and fearing that he had been fooled.