PLATO TEACHES THREE SPHERES OF EXISTENCE.
8. This is how Plato establishes three degrees in the hierarchy of being: “Everything is around the king of all.” He is here speaking of first rank entities. He adds, “What is of the second order is around the second principle; and what is of the third order is around the third principle.” Plato further says that “God is the father of the cause.” By cause, he means Intelligence; for, in the system of Plato, it is Intelligence which plays the part of demiurgic creator. Plato adds that it is this power that forms the Soul in the cup. As the cause is intelligence, Plato applies the name of father to the absolute Good, the principle superior to Intelligence and superior to “Being.” In several passages he calls the Idea “existence and intelligence.” He therefore really teaches that Intelligence is begotten from the Good, and the Soul from Intelligence. This teaching, indeed, is not new; it has been taught from the most ancient times, but without being brought out in technical terms. We claim to be no more than the interpreters of the earlier philosophers, and to show by the very testimony of Plato that they held the same views as we do.
THIS DOCTRINE TAUGHT BY PARMENIDES.
The first philosopher who taught this was Parmenides, who identified Existence and Intelligence, and who does not place existence among sense-objects, “for, thought is the same thing as existence.” He adds that existence is immovable, although being thought. Parmenides thus denies all corporeal movement in existence, so as that it might always remain the same. Further, Parmenides compares existence to a sphere, because it contains everything, drawing thought not from without, but from within itself. When Parmenides, in his writings, mentions the One, he means the cause, as if he recognized that this unity (of the intelligible being) implied manifoldness. In the dialogue of Plato he speaks with greater accuracy, and distinguishes three principles: the First, the absolute One; the second, the manifold one; the third, the one and the manifold. He therefore, as we do, reaches three natures.