It has been more than ten years since my grandfather passed away. I have never forgotten the words he said to me before he died. At that time, he held my hand tightly and said: "Great man, the only good thing in the world is loss." Grandpa was in good health and was a hard-working and simple farmer. When he was young, he said goodbye to his wife and children and came to Changsha City from the countryside to make a living. At that time, there was no running water in Changsha City, and residents relied on water sellers to carry water from the Xiangjiang River. When my grandfather first arrived in Changsha, he made a living by selling water. Grandpa was kind to others, and would not accept any money from poor people. And even if they were hungry, they still had to carry water from the Xiangjiang River to their homes. As time went by, my grandfather made many poor friends. Sometimes grandpa couldn't find a buyer, so a poor friend would buy the water or help him find a customer... When talking about these, grandpa would repeat his favorite saying: "The only good thing in the world is to lose money." Grandpa does hard work, I eat the cheapest roasted sweet potatoes, and occasionally eat rice, and only use soybean curd to go with it. After saving some money in this way, grandpa walked more than a hundred miles to return home. On the way, I also relied on roasted sweet potatoes to satisfy my hunger. Grandma is a good housekeeper. Due to poverty, she is very frugal. When her grandpa brings something back from the city, she can't help but nag a few words, and her words are sharp. A poor family of five often has troubles, and it is inevitable that there will be some disputes between them. But once grandpa noticed that grandma was angry, he hid aside and remained silent until grandma calmed down. So grandma often said that grandpa was a "loser person." Perhaps because of this, the two have always had a good relationship. Grandpa was able to endure hardships at work, and he quit smoking as soon as he entered the city. Soon I saved some money and opened a small grocery store. When there were no customers, he would weave bamboo utensils, and he became a self-taught craftsman. The quality was getting better and better, and the varieties were increasing day by day, making him very popular among the residents. At that time, many farmers still brought soybeans, grain and other agricultural and sideline products to the city in exchange for money. It was difficult for them to bring up the money to buy bamboo utensils, but they wanted to exchange their own things. Grandpa didn't mind the trouble. He didn't care if the other party gave more or less. He never cared about it and always closed the deal cheerfully. Grandma sometimes complained that he took less, but he said: Most people don't take advantage. Sometimes they give back. It will be a little more, but some people are given less, maybe because they are short of money. Anyway, I make money through my own efforts, so let me help them out. If we really want to take advantage here, we won't buy someone else's and let him get three points. As long as the deal is completed, we will always gain a little bit. Even if we suffer a little loss, our credibility will be high in the eyes of everyone. That's exactly what happened, and grandpa's business gradually prospered. After liberation, my grandfather went to work in the factory. He is highly skilled and can endure hardships and losses. Everyone is happy to make friends with him and elected him as the workshop director. As I grow older, I gradually understand the deeper meaning of my grandfather’s words. Every time I see someone playing the easy job at work, ignoring others and the collective for personal reasons, thus losing the trust of their leaders and comrades; every time I hear someone being cheated or dragged into trouble just for the sake of small profits. When I was in jail, whenever I heard some couples quarreling over trivial matters, or even breaking up their families, I would think of my grandpa and his "warning motto" that "there are only good things to lose in this world."