If you say your enemy is uneducated, increase your own love of learning and industry; if you call him coward, stir up the more your own spirit and manliness; and if you say he is wanton and licentious, erase from your own soul any secret trace of the love of pleasure. For nothing is more disgraceful or more unpleasant than slander that recoils on the person who sets it in motion; for as the reflection of light seems most to injure weak eyes, so does censure when it recoils on the censurer, and is borne out by the facts. For as the north-east wind attracts clouds, so does a bad life draw upon itself rebukes. Sec. V. Whenever Plato was in company with people who behaved in an unseemly manner, he used to say to himself, "Am I such a person as this?"[514] So he that censures another man's life, if he straightway examines and mends his own, directing and turning it into the contrary direction, will get some advantage from his censure, which will be otherwise idle and unprofitable. Most people laugh if a bald-pate or hump-back jeer and mock at others who are so too: it is quite as ridiculous to jeer and mock if one lies open to retort oneself, as Leo of Byzantium showed in his answer to the hump-back who jeered at him for weakness of eyes, "You twit me with an infirmity natural to man, while you yourself carry your Nemesis on your back."[515] And so do not abuse another as an adulterer, if you yourself are mad after boys: nor as a spendthrift, if you yourself are niggardly. Alcmaeon said to Adrastus, "You are near kinsman to a woman that slew her husband." What was his reply? He retaliated on him with the appropriate retort, "But you killed with your own hand the mother that bore you."[516] And Domitius said to Crassus, "Did you not weep for the lamprey that was bred in your fishpond, and died?" To which Crassus replied, "Did you weep, when you buried your three wives?" He therefore that intends to abuse others must not be witty and noisy and impudent, but a man that does not lie open to counter-abuse and retort, for the god seems to have enjoined upon no one the precept "Know thyself" so much as on the person who is censorious, to prevent people saying just what they please, and hearing what don't please them. For such a one is wont, as Sophocles[517] says, "idly letting his tongue flow, to hear against his will, what he willingly says ill of others."