"The Equation of Effort and Reward: A Lesson Learned" is a story about a student who has always focused on putting in effort to achieve a certain reward. However, after receiving disappointing results from an important exam, the student realizes that effort and reward are not always equal. Through reflecting on their past experiences and learning from a difficult moment, the student comes to understand the true meaning of "Do your best and leave the rest to fate". The story highlights the importance of perseverance, hard work, and accepting the outcomes of our efforts, even if they do not meet our expectations.