In other words, self-interest is a person's pleasure, and pursuing self-interest as a kind of happiness is understandable and somewhat necessary, as p . Fagoy stated: "Man is free in choosing the concrete objects from whose possession he hopes to obtain happiness." (Fagothey, 47) He also wrote: “We naturally desire health, wealth, knowledge and other goods; but we can't always get them." (Fagothey, 56) Conquering every desire is necessary for people rather than simply surviving. In this case, there is nothing wrong with achieving a personal goal and dreaming without hindering others, because as the Stoic scholar stated, “What people constantly do, are things that are not under their control.” (Hospers, 53) Therefore, trying to achieve the desire, promoting oneself is the only way to achieve it. For example, if a person wants to be wise, go to school and study hard, he will eventually acquire knowledge, which will otherwise put an end to his self-interest. Without promoting yourself it is impossible to achieve this goal. Promptly, if everyone tries their best to capture the best by bringing this kind of active progress into society, as everyone makes little progress; it actually has a huge influence on society. To summarize, considering the term self-interest, people not only need to separate its concept from that of selfishness, but also