A Critical Interpretation of Heidegger's Concept of Platonic Truth, According to the Concept of the Form of Good

Heidegger in his article, Plato's Doctrine of Truth, says Plato close the eyes to traditional concept of truth as unconcealment (aletheia) because of his theory of the forms. According to Heidegger, Platonic truth is agreement of natural things with their forms. Heidegger also pays attention to the concept of the form of Good in his interpretation. He says Plato prefers the concept of the form of Good to the concept of truth as unconcealment. This means first, Platonic concept of truth is agreement of things with forms. Second, the form of Good overrides truth as unconcealment (aletheia). This paper investigated Heidegger's claim with studying Plato's theory of the forms and the form of Good. It seems that Plato not only has no proof on agreement of things and forms as truth, but also he declines any dependency of truth on sensible world according to divided line allegory. In Plato's philosophy the truth is not agreement of things and forms. It is in the essence of forms, and things can be comparing with them. As Heidegger says Plato created collateral relation between paideia concept, the form of Good and truth as aletheia in the allegory of cave. So the concept of the form of Good not only does not castrate aletheia, but also confirms it by aligning.