1. Cabalistic Philosophy 394 2. The Gnostics 396 C. The Alexandrian Philosophy 399 1. Ammonias Saccas 403 2. Plotinus 404 3. Porphyry and Iamblichus 431 4. Proclus 432 5. Successors of Proclus 450 CHAPTER III FIRST PERIOD, THIRD DIVISION: PLATO AND ARISTOTLE. THE development of philosophic science as science, and, further, the progress from the Socratic point of view to the scientific, begins with Plato and is completed by Aristotle. They of all others deserve to be called teachers of the human race. A. PLATO. Plato, who must be numbered among the Socratics, was the most renowned of the friends and disciples of Socrates, and he it was who grasped in all its truth Socrates’ great principle that ultimate reality lies in consciousness, since, according to him, the absolute is in thought, and all reality is Thought. He does not understand by this a one-sided thought, nor what is understood by the false idealism which makes thought once more step aside and contemplate itself as conscious thought, and as in opposition to reality; it is the thought which embraces in an absolute unity reality as well as thinking, the Notion and its reality in the movement of science, as the Idea of a scientific whole. While Socrates had comprehended the thought which is existent in and for itself, only as an object for self-conscious will, Plato forsook this narrow point of view, and brought the merely abstract right of self-conscious thought, which Socrates had raised to a principle, into the sphere of science. By so doing he rendered it possible to interpret and apply the principle, though his manner of representation may not be altogether scientific. Plato is one of those world-famed individuals, his philosophy one of those world-renowned creations, whose influence, as regards the culture and development of the mind, has from its commencement down to the present time been all-important. For what is peculiar in the philosophy of Plato is its application to the intellectual and supersensuous world, and its elevation of consciousness into the realm of spirit. Thus the spiritual element which belongs to thought obtains in this form an importance for consciousness, and is brought into consciousness; just as, on the other hand, consciousness obtains a foothold on the soil of the other. The Christian religion has certainly adopted the lofty principle that man’s inner and spiritual nature is his true nature, and takes it as its universal principle, though interpreting it in its own way as man’s inclination for holiness; but Plato and his philosophy had the greatest share in obtaining for Christianity its rational organization, and in bringing it into the kingdom of the supernatural, for it was Plato who made the first advance in this direction.