Be honest and kind. We have received a beautiful moral education since childhood and know what truth, goodness and beauty are, but in real life, many things are not like this. To give two examples that happened to me, I once bought a T-shirt at the price of 99 yuan and paid for it by WeChat. A girl next to the clerk kept nagging 45, 45, and then the cashier typed the amount into 45 yuan. After I paid, I reminded the cashier (a girlfriend who worked in the summer vacation overcharged the cashier) and gave me a social practice lesson, telling me that this behavior is a joke in the eyes of adults. I smiled and said, I remember, after a long time, we found the uncle who collected waste books and waste paper. In summer, my uncle took a scale that we didn't know, and casually gestured that it was 65 yuan, but maybe he took it wrong. After my uncle left, I counted the money in my hand and gave 5 yuan. I told my other friend B. My friend B said it was not easy for us to go downstairs and give it to him. I said that if other friends saw this, it would be hard to say that we were stupid, so my friend B became entangled with me. Finally, we decided to return the five dollars to grandpa, and grandpa said it didn't matter if five dollars went downstairs. We insisted on returning it to him, and when grandpa left, he took out the garbage we left at the door and threw it away. Maybe five dollars is only enough for many people to drink a bottle of drink, but it takes a man in his fifties to walk a lot of stairs on a hot day, and the trip is heavy and he can't carry waste.