Sec. XIV. Moreover, as it is of great help to fair dealing sometimes not to seize some honest gain, that you may accustom yourself as far as possible to flee from unjust gains, and as it makes greatly for virtue to abstain sometimes from your own wife, that you may not ever be tempted by another woman, so, applying the habit to curiosity, try not to see and hear at times all that goes on in your own house even, and if anyone wishes to tell you anything about it give him the go-by, and decline to hear him. For it was nothing but his curiosity that involved Oedipus in his extreme calamities: for it was to try and find out his extraction that he left Corinth and met Laius, and killed him, and got his kingdom, and married his own mother, and when he then seemed at the acme of felicity, he must needs make further inquiries about himself; and though his wife tried to prevent him, he none the less compelled the old man that had been an eye-witness of the deed to tell him all the circumstances of it, and though he long suspected how the story would end, yet when the old man cried out, "Alas! the dreadful tale I must then tell," so inflamed was he with curiosity and trembling with impatience, that he replied, "I too must hear, for hear it now I will."[632] So bitter-sweet and uncontrollable is the itch of curiosity, like a sore, shedding its blood when lanced. But he that is free from this disease, and calm by nature, being ignorant of many unpleasant things, may say, "Holy oblivion of all human ills, What wisdom dost thou bring!"[633] Sec. XV. We ought therefore also to accustom ourselves, when we receive a letter, not to be in a tremendous hurry about breaking the seal, as most people are, even tearing it open with their teeth if their hands are slow; nor to rise from our seat and run up to meet him, if a messenger comes; and if a friend says, "I have some news to tell you," we ought to say, "I had rather you had something useful or advantageous to tell me." When I was on one occasion lecturing at Rome, one of my audience was the well-known Rusticus, whom the Emperor Domitian afterwards had put to death through envy of his glory, and a soldier came in in the middle and brought him a letter from the Emperor, and silence ensuing, and I stopping that he might have time to read his letter, he would not, and did not open it till I had finished my lecture, and the audience had dispersed; so that everybody marvelled at his self-control. But whenever anyone who has power feeds his curiosity till it is strong and vehement, he can no longer easily control it, when it hurries him on to illicit acts, from force of habit; and such people open their friends' letters, thrust themselves in at private meetings, become spectators of rites they ought not to witness, enter holy grounds they ought not to, and pry into the lives and conversations of kings.