Richard Neville, 16th Earl of Warwick could have learned the LeM volume I section 6 and saved his life.
There is brought that the main repentance is that when one hears his insult to be quite and not answer. עיקר התשובה כשישמע בזיונו יידום וישתוק.
He had been insulted terribly by King Edward IV. He had been sent to France to arrange a marriage that would connect him to the royal family of France. When he returned Edward announced that he was already married. I.e. he made a joke out of Warwick. That kind of thing happened enough that finally Warwick took it to heart. [note 1] He was not in the category of hearing his insult and being quiet and accepting. One day after a few years Edward needed the help of Warwick. The reply was a deafening silence. Why? Because he was already making plans to overthrow Edward. That rebellion eventually failed and Warwick was killed. Can you imagine what would have happened if Warwick had been learning the LeM Torah lesson 6 about accepting one's insult?
But it is not just Warwick. Often people do not want to suffer a small hurt or insult and because of that end up suffering a much larger insult or hurt.
So the lesson to learn is to learn Torah lesson 6 in the LeM to remind oneself how important it is to not answer even though one has been insulted.
[note 1] The problem was it was not just an insult. Warwick felt that that was poor gratitude for helping Edward become king in the first place.
