Abstract
Plato gradually reaches the concept of the “Good itself” in the most extensive dialogue (apart from The Laws). The dramaturgy of Republic was included in the pedagogical idea. Plato’s own brothers, Glaucon and Adeimantus, representatives of the aristoia, want to hear from Socrates logically based instruction on what is really good and why, regardless of the prevailing public opinion in Athenian society. They both know that the most valued asset is the wealth and political influence that the use of force provides. Thanks to this, you can effectively appear to be the fairest among citizens, despite the fact that you are extremely unjust. Appearances are highly valued in social life. Only minds exceptionally open to dialectics seek the truth, not content with appearances. Socrates introduces listeners to the knowledge of “the Good itself”, the “form of the Good”, as the most perfect object of knowledge and at the same time the highest principle. The Good, identical with the “One”, “is” above substance (509b).