[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.

We must begin by mentioning the facts of Plato’s life. Plato was an Athenian, born in the third year of the 87th Olympiad, or, according to Dodwell, Ol. 87, 4 (B.C. 429), at the beginning of the Peloponnesian war, in the year in which Pericles died. He was, according to this, thirty-nine or forty years younger than Socrates. His father, Ariston, traced his lineage from Cadrus; his mother, Perictione, was descended from Solon. The paternal uncle of his mother was the celebrated Critias, who was for a time among the associates of Socrates, and who was the most talented and brilliant, but also the most dangerous and obnoxious, of the Thirty Tyrants of Athens (supra, Vol. I. p. 421). Critias is usually represented by the ancients as an atheist, with the Cyrenaic Theodoras and Diagoras of Melos; Sextus Empiricus (adv. Math. IX. 51-54) has preserved to us a fine fragment from one of his poems. Sprung from this noble race, and with no lack of means for his culture, Plato received from the most highly esteemed of the Sophists an education in all the arts which were then thought to befit an Athenian. In his family he was called Aristocles; it was only later that he received from his teacher the name of Plato. Some say that he was so styled because of the breadth of his forehead; others, because of the richness and breadth of his discourse; others again, because of his well-built form.[1]

In his youth he cultivated poetry, and wrote tragedies—very much like young poets in our day—also dithyrambs and songs. Various specimens of the last are still preserved to us in the Greek anthology, and have as subject his various loves; we have amongst others a well-known epigram on a certain Aster, one of his best friends, which contains a pretty fancy, found also in Shakespeare’s Romeo and Juliet:

“To the stars thou look’st, mine Aster,