Parashat Hayeh-Sara tells of Avraham Avinu's efforts to purchase מערת המכפלה – the Machpeila Cave in Hevron, where he wished to bury his wife, Sara, who had just passed away. The territory of this special cave was owned by a man named Efron. After Efron first said that he would give the land to Avraham free of charge, he then turned to Avraham and said, ארץ ארבע מאות שקל כסף ביני ובינך מה היא – "What is a 400-shekel piece of land between us?" (23:15). Avraham immediately paid Efron this sum – 400 silver coins, which was an outrageously exorbitant amount of money for this property. Efron's tactic is one which many a wily salesman has used since then. Many of us have probably had the experience of somebody trying to sell us something, and he tells us, "Because I like you," or "Because you're a friend," or "Because you're a valued customer" he was offering a "discounted" price. This price is not necessarily a discount, and the merchandise or service is not something we necessarily need or even want, but framing the deal in this way, making us believe that he actually likes us, cares about us, and wants to do something nice to us, convinces us that this is to our benefit, which in truth, it isn't. Rashi (23:16) notes that in the pasuk that tells of Avraham paying Efron the 400 coins, Efron's name is spelled unusually. Throughout this section, his name is spelled עפרון, but in this pasuk, it is spelled עפרן, without the letter ו'. Rashi explains that because Efron acted dishonestly, pretending to be Avraham's friend, to be giving him a great deal, when in fact he was charging an outrageous sum, a letter was taken out of Efron's name. People act dishonestly because they see only the here-and-now. They see an opportunity to make money or obtain something they want by being less than truthful, and so they go ahead and do it. But long-term, this has the effect of ruining their "name," their reputation. Dishonesty might yield short-term benefit, but it causes long-term harm. A single dishonest act can ruin a person's reputation and standing, forever. If we think long-term, we realize that dishonesty hurts us infinitely more than it helps us. The contrast to Efron's shortsightedness is Sara Imenu. The first pasuk of our parashah tells us that Sara lived for 127 years, and it then concludes, שני חיי שרה – "these were the years of Sara." Rashi explains that this phrase was added to tell us that כולן שווין לטובה – Sara's days were all equally good. At first glance, this seems very difficult to understand. Sara went through many ordeals over the course of her life. She went with her husband to a new land as commanded by Hashem, and soon after they arrived, a famine struck, forcing them to move again, to Egypt, where she was forcibly taken by the king. She would be abducted again later, by a different king (Avimelech). She was childless for many years, eventually having Avraham marry her maidservant, who then immediately conceived, and started disrespecting Sara. Sara did not have an easy life. So how could Rashi say that the days of her life were all equally good? The answer is that although Sara's life wasn't all easy, all her days – both good and bad – led her to her share in the world to come. In the short-term, she had some difficult periods. But in the long-term, even the hard times were "good," because she lived not for the moment, but for eternity, to live in the service of Hashem, through thick and thin, and earn her share in the next world. Things which seem appealing in the moment, in the "here-and-now," can ruin our "name," and cause us long-term harm. Whenever we feel tempted to lie, to gossip, to say something we shouldn't, to forego a mitzvah, or to act in a way we know is wrong, let's remember the long-term benefits of doing the right thing – which always, but always, far exceed the fleeting, short-term benefits of the wrong thing which we currently feel like doing.