This highest rule or Truth is the object of genuine knowledge, different from mere opinion in regard to the world which is changing, fleeting, transient, mere appearance. True Being is unchangeable, Eternal. Here Plato brings Heraclitus and Parmenides together and transcends them in his higher idealism. Plato declares that knowledge of Eternal Being is true knowledge. This knowledge is identified with thought, conceptual thought, which alone is said to grasp the Eternal.
True knowledge is conceptual knowledge.
According to the Vedanta, lower, relative knowledge consists in the correspondence of thought and its object, but in the higher, universal knowledge there is no correspondence but identity, for, in universal knowledge the knower and the known are one. The Vedanta would accept rather the coherence theory in its epistemology than the theory of correspondence, as far as trans-empirical knowledge is concerned. But it has no objection to the correspondence theory as far as empirical knowledge is concerned. The Vedanta metaphysics accepts, in agreement with Plato's, that the objects of thought cannot be absolutely unreal and that they ought to have realities behind them. This is true even of ordinary thought, for all thought in the world of experience is tremendously influenced by the materials supplied by the senses.