believes that Plato's philosophy of education is a means to achieve justice, both individual and social. Myungjoon states, according to Plato, that singular fairness can be acquired when each individual develops their own abilities without all the potential limitations. Myungjoon believes that Plato thinks that justice is a means of excellence and that excellence is what virtue is. Virtue is knowledge and for Myungjoon this is why Plato believes that knowledge is necessary to be right. Myungjoon continues by analyzing the three stages of advancement of Plato's knowledge. Plato's three stages of knowledge of advancement are knowledge of one's employment, knowledge of self, and knowledge of the Idea of ​​the Good. Myungjoon interprets Plato's philosophy of education as meaning that all individuals can, without much effort, exist in friendship when society provides them with equal educational opportunities from an early age to compete decently with another.