In the current society, fierce competition between people is inevitable, but because many people are disappointed, they do not hesitate to violate public moral ethics and rules and order in the end. In the end, it is not only difficult to take advantage, but sometimes they are hurting themselves. As the system becomes more and more complete, the behavior of too much gain and loss that violates the rules can only be to shoot yourself in the foot. For example, athletes train hard every day to win medals in competitions. When they have been waiting for a long time When the game comes, some athletes will be particularly nervous, and even intentionally or unintentionally do something illegal. This text is intended to explain. ["Don't do violations because of too much gain and loss.", 'Sound rules of the game help fair play.', 'Good mentality is only possible for good results.', 'Athletes should establish the right concept of competition.']