Phronesis is a fundamental term in Ancient Greek Philosophical tradition. This term is based on »wise- ruler« in Plato and »legislator- philosopher« thought in Plato. Most of Philosophers and commentators of Aristotle work relate methodical use of this term to Aristotle. This affair is the result of the manner of these two philosopher’s expression. But their ambiguity shows phronesis less importance in Plato’s intellectual tradition.Phronesis in Plato is brightness that results from good perception. But in his last work, means Plato, (...) phronesis hasn’t only divine origin, but in the meaning of Grief and Political Knowledge, is the supplement of sophia that is the highest coordination between reason and desire in spirit. Phronesis in Plato is responsible for creating governmental- philosophical rules and practical judgment through experience and council. By this, phronesis owners can merge wisdom and politics and see better than others. So, sophia and phronesis aren’t synonyms in Plato, but their conceptual application are related to each other: as phronesis owner has practical wisdom- sophia in Aristotle thought. (shrink)