One day a son asked his father, “Dad, what is experience?” The father smiled and said, “Experience is the teacher of life.” The son was surprised and said, “How?” The father said, “When you make a mistake and learn from that mistake, that is experience. We get knowledge from books, but real life events teach us experience.” The son asked again, “Then is it good to make mistakes?” The father said, “Making mistakes is not bad, but repeating the same mistake over and over is bad. Experience changes a person and helps him to follow the right path.” Hearing his father’s words, the son started thinking deeply.