Plato's Philosophy of Education and the Idea of Good

Plato's Concept of Education and the Soul

In Republic 518c-d, Plato demonstrates that education is the art of making the whole soul (an allusion to the three parts of the soul: rational, irascible, and appetitive) turn away from the sensible (the world of becoming), where one will never find virtue or knowledge, and reorient toward the intelligible (being), where truth and goodness reside.

By affecting the whole soul—and not just the rational part—Plato conceives education not as a mere acquisition of knowledge, but as moral training which should culminate in the achievement of virtue and goodness.

The Ultimate Goal: The Idea of Good

Therefore, the ultimate goal of education is the contemplation of the Idea of Good. This is not only the ultimate foundation of all reality but also the guidance that should direct individual action and the political ruler.

Plato vs. The Sophists: Redirection vs. Infusion

The difference between Plato's concept of education and that of the Sophists lies precisely in the terms infusing and turning. For Plato, education does not consist in infusing knowledge, but in redirecting and refocusing the intelligence (the organ through which each person learns). This capacity is already present in the soul of everyone; the goal is to stop looking at the sensible and look toward the intelligible.

Critique of the Sophist Method

First, the Sophists understand education as the art of providing science to a soul that does not have it (518c). For them, educating is a mere transmission of knowledge from the one who knows (the Sophist) to the ignorant. This is why the Sophists conceived it as an exchange of knowledge for money.

According to Plato, the Sophists understand education as if it were to instill sight into blind eyes. This implies that the soul of the student is incapable of knowing the truth itself, much like eyes that lack the ability to see. In the text, Plato criticizes this perspective, noting that the Sophists forget that in the soul of every man, there is a certain innate power of knowledge.

This power, existing in the soul of each individual, is alone capable of grasping the truth and attaining knowledge, provided it is turned toward the intelligible. From this criticism of the Sophists, Plato proposes an alternative concept of education characterized by this internal reorientation.