21. Here is a true story about a young man in a small town. He once liked drinking lots of wine out and often got home drunk. His wife was very angry, but could not do anything to stop him from drinking.
The young man had a 5-year-old daughter, who was lovely and very clever. He loved her very much. One evening, he got home drunk as usual. Seeing this, his daughter said to him, "Do you really love me, dad?" He answered, "Yes, of course." After a little while she asked him, "Do you listen to me, dad?" He replied to his daughter, "Yes, of course." She asked again, "Can you give me a promise, dad?" He answered her with the same three words for the third time and then added, "What is it?" The daughter said, "Please promise me that you will never drink, dad." Hearing this, he promised her that he would not drink any more from then on.
The next afternoon, the young man planned to go out to drink. Before leaving home, he said to himself, "If my daughter asks me why I have drunk again, what shall I say to her?" He didn't go out to drink that afternoon. From then on, whenever he wanted to drink, he would remember the promise he had given to his daughter. As a result, he never drank again and his bad habit — drinking was prevented (阻止).