The topic of moderation, which is the middle of extremes, is considered one of the most prominent moral concepts, which causes coherence in the cycle of life. Behavioral imbalance and ambivalence in a person causes degeneration and loss of balance and will result in injuries.The purpose of this article is to identify the fundamentals of this element and its effect on people's performance, which aims to investigate the dimensions of moderation in the Kingdom of Jamshid from Aristotle's point of view, and to show what factors are involved in not having moderation and His fall has been effective.As a result, at the beginning of Jamshid's rule, there was no moderation and sufficiency in providing livelihood facilities. Because psychologically, he lacked a moderate character, especially in politics. According to Aristotle's theory of moderation, the cause of the devaluing of Jamshid's good deeds and the emergence of ego is extremism in displaying values.The word "Far" has been repeated nine times and the good things he has done are estimated at the same rate. The word "Devil" and "Iblis" are also mentioned ten times and it shows that his demonic tendencies have taken him away from his original goals, which shows the abundance of suffering caused by ingratitude and foolishness.