A man was disputing with a lion which was the stronger of the two, and while they were seeking evidence on the matter in dispute, they came at last to a sepulchre, on which the human disputant pointed out a lion, depicted with his jaws rent asunder by a man-a striking proof of superior strength. The lion made answer: "This was painted by a human hand; if lions knew how to paint, you would see the man undermost. but I will give a more convincing proof of our valour." He accordingly led the man to some games, where, calling his attention to men slain in reality by lions, he said: "There is no need of the testimony of pictures here; real valour is shown by deeds." 
This fable teaches that liars use colouring in vain, when a sure test is produced. 