How could you stand your ground and suffer that to be proved? Clearly not at all. You instantly turn away in wrath. Yet what harm have I done to you? Unless indeed the mirror harms the ill-favoured man by showing him to himself just as he is; unless the physician can be thought to insult his patient, when he tells him:—"Friend, do you suppose there is nothing wrong with you? why, you have a fever. Eat nothing to-day, and drink only water." Yet no one says, "What an insufferable insult!" Whereas if you say to a man, "Your desires are inflamed, your instincts of rejection are weak and low, your aims are inconsistent, your impulses are not in harmony with Nature, your opinions are rash and false," he forthwith goes away and complains that you have insulted him.