A Beginner's History of Philosophy, Vol. 1: Ancient and Mediæval Philosophy

by Herbert Ernest Cushman

Timæus, Plato’s conception of physical nature, expressed in mythical form.

Laws, the work of Plato’s old age, his revision of the ideal State.

Concerning the Dialogues[28] of Plato. The early philosophers presented their philosophy in metrical form as poems “concerning nature”; Socrates perpetuated his teachings through conversations with men; Plato made his influence permanent by written dialogues; Aristotle’s philosophy, in the works that have been preserved, stands in the form of treatises whose sole purpose is that of exposition. Plato’s dialogues therefore have a twofold place in the history of literature.On the one hand, in the history of literature proper we have already mentioned them as standing after the Greek drama in the development of Greek dialectics; on the other hand, in the development of philosophical instruction they stand between the conversations of Socrates and the scientific expositions of Aristotle.

Plato was the first child of Fortune, and the complete preservation of his works was the most remarkable proof of it. Æschylus was the author of at least 70 writings, of which 7 are preserved; Euripides was the author of 95 writings, of which 18 are preserved; Sophocles had 123 writings, aside from his lyric works, of which 7 are preserved. Shakespeare wrote 36 plays, Plato wrote 35 dialogues that are genuine. All of Plato’s writings have come down to us. Why were the writings of Plato preserved from the destroying hand of time? There are at least three causes of their preservation: (1) they had intrinsic beauty; (2) there was contemporary public interest in them; (3) the chief cause, Plato’s school kept close guard over them.

By the dialogue Plato could employ the Socratic method, give dramatic effect, and idealize Socrates. The Republic is his crowning literary effort, and the most complete statement of his mature political views. Perhaps the Philebus is the best expression of his idea of goodness, and presents his most complete organization of the sciences. All Plato’s dialogues have a transparent beauty and a purity of diction; and they may be taken as a revelation of himself. All are dialogues save the Apology, but the dialogue element grows less and less in his later works. Socrates is usually the spokesman in them, and to him is usually giventhe deciding word. Only a few have a fixed plan of argument. One thread and then another is followed, and in many no decision whatever is reached; for the dialogues must always be taken as artistic products in which philosophical experiences are idealized. Plato often employs myths or parables to illuminate his arguments. The situations and the literary adornments show the human touch, and the conversation often moves to a dramatic close.

In the Republic Plato sought to formulate theoretically certain political conceptions of the ideal State that were then in the air. It is interesting to note that his conception influenced the political idealism of later time, as, for example, Cicero’s De Republica, Augustine’s City of God, More’s Utopia, Campanella’s State of the Sun, Bacon’s New Atlantis, Macchiavelli’s Il Principe.

The Factors in the Construction of Plato’s Doctrine.

1. His Inherited Tendencies. (a) In the first place Plato was by instinct an aristocrat. His family was one of the most distinguished in Athens, and traced its descent from Solon and Codrus. In making an estimate of his philosophy one must take account of the caste of society in which he was born. His metaphysical theory of Ideas is aristocratic, and in it he turns from all that is of the earth earthy to what is above the life of “opinion.” His four cardinal virtues are possible only to the few. His political attitude was peculiar. He was hostile to the democracy, and yet his political idealism diverged so far from the practical politics of Athenian aristocracy that he completely abstained from public life. With Plato, philosophy once more retires to the school. Here we have the strangejuxtaposition of Socrates, the teacher, who had been engaged in a practical reformation, whose father was an artisan and whose mother a midwife, and Plato, his adoring pupil and truest interpreter,—Plato, the idealist, “whose speculation is not like the Philistine, whose life is spent in the market place or the workshop, and whose world is measured by the narrow boundaries of his native town; it is the lord of the manor, who retires to his mansion, after having seen the world, and turns his gaze towards the distant horizon; disdaining the noise of the cross-roads, he mingles only in the best society, where is heard the most elegant, the noblest,and the loftiest language that has ever been spoken in the home of the Muses.”[29]

(b) In the next place Plato had an instinctive love for the beautiful, and in this he was great, even in his time. Every Periclean Greek was artistic, but Plato was more than this. He is to be ranked among the great creators of the art of his day,—with Phidias and Sophocles. He represented in his person everything ideally Greek. He was a man of great beauty, a human Apollo, a man endowed with every physical and mental talent, and his moral character was almost ideal in its purposes. His real name was Aristocles, and he got his name Plato from his broad frame. The artistic development of the time appealed to him in his youth, and he was early interested in the writing of epic and dramatic poetry. This artistic instinct determined in no small measure not only the form of the presentation of his thought, but also the content of the thought itself. It determined his principle of conceiving the Ideas, the constitution of his State, his theory of pleasure, and hisconception of the highest Good. The artistic form of the presentation of his writings was as important to him as the matter presented.

2. His Philosophical Sources. Plato had received a careful education that made him familiar with all the scientific theories of current interest to the Athenians. The elements of the earlier philosophies, that were fundamental to the mechanical atomism of Democritus, were recombined in a different way by Plato under the influence of Socrates’ ethical principle. Even Plato’s political and artistic ideals are subordinate to his entire absorption in the personality and teaching of Socrates. Heracleitus, Protagoras, Parmenides, and, later, Anaxagoras and the Pythagoreans, furnished him with his philosophical materials. We may point out three of the preceding philosophies that had an especially powerful influence upon him: those of (1) Socrates; (2) Parmenides; and (3) the Pythagoreans. His revered master, Socrates, furnished Plato throughout with the conceptual principle, by which he worked over all his material into his daring system. The influence of Parmenides upon him was also very great. He speaks of the Eleatic as “Parmenides, my father.” Plato betook himself to the Eleatic school at Megara upon the death of Socrates, and this shows that he must already have been hospitable to the philosophy which taught the conception of an absolute and eternal essence of things known by the human reason. The influence of the Pythagoreans was felt by Plato on his first visit to Italy. This influence grew with him, and seems to dominate the dialogue of his old age, the Laws. The Eleatic Oneness was a single, immutable block. In the Pythagorean doctrine of numbers hefound the conceptual divisions of that Oneness, and he also found that such conceptions would give a content to Socrates’ conception of the Good. Indeed, the numbers seemed to be the conceptual models for which Socrates was searching. Mathematical truths are independent of perception. They are innate ideas. They are eternal and immutable Forms. They were the weapons needed against the Protagorean doctrine of perception. While Plato agreed with Heracleitus that the visible world is a changing world, and with Protagoras that our sense-perceptions of that world can yield only relative truth, he developed his philosophy almost entirely on its conceptual side; and this is due to the influence first of Socrates, second of Parmenides, and third of the Pythagoreans. Plato’s completed philosophy was the theory of Ideas, worked over in his mind a half-century or more, and is in itself a history of the development of pure concepts.