One day, a donkey tried to run as fast as a horse. However, after running only a short distance, it slipped in the mud and fell. People nearby began to laugh at it. Someone remarked, "Imagine a donkey trying to run like a horse!" The donkey said nothing at the time; instead, it learned from its mistake. It practiced regularly for a few days, built up its physical strength, and mastered running techniques. Later, it raced again. This time, to everyone's surprise, it ran much faster than before and succeeded. Looking at those who had once laughed at it, the donkey seemed to say, "It is not laughter, but effort and preparation that are the true keys to success." Indeed, failure is never the end; if one persists in the effort, success is bound to follow.