Empedocles, born 444 B.C., like others of the Eleatics, complained of the imperfection of the senses, and looked for truth only in reason. He regarded truth as a perfect unity, ruled by love,--the only true force, the one moving cause of all things,--the first creative power by which or whom the world was formed. Thus "God is love" is a sublime doctrine which philosophy revealed to the Greeks, and the emphatic and continuous and assured declaration of which was the central theme of the revelation made by Jesus, the Christ, who resolved all the Law and the Gospel into the element of Love,--fatherly on the part of God, filial and fraternal on the part of men.
Thus did the Eleatic philosophers speculate almost contemporaneously with the Ionians on the beginning of things and the origin of knowledge, taking different grounds, and attempting to correct the representations of sense by the notions of reason. But both schools, although they did not establish many truths, raised an inquisitive spirit, and awakened freedom of thought and inquiry. They raised up workmen for more enlightened times, even as scholastic inquirers in the Middle Ages prepared the way for the revival of philosophy on sounder principles. They were all men of remarkable elevation of character as well as genius. They hated superstitions, and attacked the anthropomorphism of their day. They handled gods and goddesses with allegorizing boldness, and hence were often persecuted by the people. They did not establish moral truths by scientific processes, but they set examples of lofty disdain of wealth and factitious advantages, and devoted themselves with holy enthusiasm to the solution of the great questions which pertain to God and Nature. Thales won the respect of his countrymen by devotion to studies. Pythagoras spent twenty-two years in Egypt to learn its science. Xenophanes wandered over Sicily as a rhapsodist of truth. Parmenides, born to wealth and splendor, forsook the feverish pursuit of sensual enjoyments that he might "behold the bright countenance of truth in the quiet and still air of delightful studies." Zeno declined all worldly honors in order that he might diffuse the doctrines of his master. Heraclitus refused the chief magistracy of Ephesus that he might have leisure to explore the depths of his own nature. Anaxagoras allowed his patrimony to run to waste in order to solve problems. "To philosophy," said he, "I owe my worldly ruin, and my soul's prosperity." All these men were, without exception, the greatest and best men of their times. They laid the foundation of the beautiful temple which was constructed after they were dead, in which both physics and psychology reached the dignity of science. They too were prophets, although unconscious of their divine mission,--prophets of that day when the science which explores and illustrates the works of God shall enlarge, enrich, and beautify man's conceptions of the great creative Father.
Nevertheless, these great men, lofty as were their inquiries and blameless their lives, had not established any system, nor any theories which were incontrovertible. They had simply speculated, and the world ridiculed their speculations. Their ideas were one-sided, and when pushed out to their extreme logical sequence were antagonistic to one another; which had a tendency to produce doubt and scepticism. Men denied the existence of the gods, and the grounds of certainty fell away from the human mind.
This spirit of scepticism was favored by the tide of worldliness and prosperity which followed the Persian War. Athens became a great centre of art, of taste, of elegance, and of wealth. Politics absorbed the minds of the people. Glory and splendor were followed by corruption of morals and the pursuit of material pleasures. Philosophy went out of fashion, since it brought no outward and tangible good. More scientific studies were pursued,--those which could be applied to purposes of utility and material gains; even as in our day geology, chemistry, mechanics, engineering, having reference to the practical wants of men, command talent, and lead to certain reward. In Athens, rhetoric, mathematics, and natural history supplanted rhapsodies and speculations on God and Providence. Renown and wealth could be secured only by readiness and felicity of speech, and that was most valued which brought immediate recompense, like eloquence. Men began to practise eloquence as an art, and to employ it in furthering their interests. They made special pleadings, since it was their object to gain their point at any expense of law and justice. Hence they taught that nothing was immutably right, but only so by convention. They undermined all confidence in truth and religion by teaching its uncertainty. They denied to men even the capability of arriving at truth. They practically affirmed the cold and cynical doctrine that there is nothing better for a man than that he should eat and drink. Cui bono? this, the cry of most men in periods of great outward prosperity, was the popular inquiry. Who will show us any good?--how can we become rich, strong, honorable?--this was the spirit of that class of public teachers who arose in Athens when art and eloquence and wealth and splendor were at their height in the fifth century before Christ, and when the elegant Pericles was the leader of fashion and of political power.
These men were the Sophists,--rhetorical men, who taught the children of the rich; worldly men, who sought honor and power; frivolous men, trifling with philosophical ideas; sceptical men, denying all certainty in truth; men who as teachers added nothing to the realm of science, but who yet established certain dialectical rules useful to later philosophers. They were a wealthy, powerful, honored class, not much esteemed by men of thought, but sought out as very successful teachers of rhetoric, and also generally selected as ambassadors on difficult missions. They were full of logical tricks, and contrived to throw ridicule upon profound inquiries. They taught also mathematics, astronomy, philology, and natural history with success. They were polished men of society; not profound nor religious, but very brilliant as talkers, and very ready in wit and sophistry. And some of them were men of great learning and talent, like Democritus, Leucippus, and Gorgias. They were not pretenders and quacks; they were sceptics who denied subjective truths, and labored for outward advantage. They taught the art of disputation, and sought systematic methods of proof. They thus prepared the way for a more perfect philosophy than that taught by the Ionians, the Pythagoreans, or the Eleatics, since they showed the vagueness of such inquiries, conjectural rather than scientific. They had no doctrines in common. They were the barristers of their age, paid to make the "worse appear the better reason;" yet not teachers of immorality any more than the lawyers of our day,--men of talents, the intellectual leaders of society. If they did not advance positive truths, they were useful in the method they created. They had no hostility to truth, as such; they only doubted whether it could be reached in the realm of psychological inquiries, and sought to apply knowledge to their own purposes, or rather to distort it in order to gain a case. They are not a class of men whom I admire, as I do the old sages they ridiculed, but they were not without their use in the development of philosophy. The Sophists also rendered a service to literature by giving definiteness to language, and creating style in prose writing. Protagoras investigated the principles of accurate composition; Prodicus busied himself with inquiries into the significance of words; Gorgias, like Voltaire, gloried in a captivating style, and gave symmetry to the structure of sentences.
The ridicule and scepticism of the Sophists brought out the great powers of Socrates, to whom philosophy is probably more indebted than to any man who ever lived, not so much for a perfect system as for the impulse he gave to philosophical inquiries, and for his successful exposure of error. He inaugurated a new era. Born in Athens in the year 470 B.C., the son of a poor sculptor, he devoted his life to the search after truth for its own sake, and sought to base it on immutable foundations. He was the mortal enemy of the Sophists, whom he encountered, as Pascal did the Jesuits, with wit, irony, puzzling questions, and remorseless logic. It is true that Socrates and his great successors Plato and Aristotle were called "Sophists," but only as all philosophers or wise men were so called. The Sophists as a class had incurred the odium of being the first teachers who received pay for the instruction they imparted. The philosophers generally taught for the love of truth. The Sophists were a natural and necessary and very useful development of their time, but they were distinctly on a lower level than the Philosophers, or lovers of wisdom.
Like the earlier philosophers, Socrates disdained wealth, ease, and comfort,--but with greater devotion than they, since he lived in a more corrupt age, when poverty was a disgrace and misfortune a crime, when success was the standard of merit, and every man was supposed to be the arbiter of his own fortune, ignoring that Providence who so often refuses the race to the swift, and the battle to the strong. He was what in our time would be called eccentric. He walked barefooted, meanly clad, and withal not over cleanly, seeking public places, disputing with everybody willing to talk with him, making everybody ridiculous, especially if one assumed airs of wisdom or knowledge,--an exasperating opponent, since he wove a web around a man from which he could not be extricated, and then exposed him to ridicule in the wittiest city of the world. He attacked everybody, and yet was generally respected, since it was errors rather than persons, opinions rather than vices, that he attacked; and this he did with bewitching eloquence and irresistible fascination, so that though he was poor and barefooted, a Silenus in appearance, with thick lips, upturned nose, projecting eyes, unwieldy belly, he was sought by Alcibiades and admired by Aspasia. Even Xanthippe, a beautiful young woman, very much younger than he, a woman fond of the comforts and pleasures of life, was willing to marry him, although it is said that she turned out a "scolding wife" after the res angusta domi had disenchanted her from the music of his voice and the divinity of his nature. "I have heard Pericles," said the most dissipated and voluptuous man in Athens, "and other excellent orators, but was not moved by them; while this Marsyas--this Satyr--so affects me that the life I lead is hardly worth living, and I stop my ears as from the Sirens, and flee as fast as possible, that I may not sit down and grow old in listening to his talk."
Socrates learned his philosophy from no one, and struck out an entirely new path. He declared his own ignorance, and sought to convince other people of theirs. He did not seek to reveal truth so much as to expose error. And yet it was his object to attain correct ideas as to moral obligations. He proclaimed the sovereignty of virtue and the immutability of justice. He sought to delineate and enforce the practical duties of life. His great object was the elucidation of morals; and he was the first to teach ethics systematically from the immutable principles of moral obligation. Moral certitude was the lofty platform from which he surveyed the world, and upon which, as a rock, he rested in the storms of life. Thus he was a reformer and a moralist. It was his ethical doctrines which were most antagonistic to the age and the least appreciated. He was a profoundly religious man, recognized Providence, and believed in the immortality of the soul. He did not presume to inquire into the Divine essence, yet he believed that the gods were omniscient and omnipresent, that they ruled by the law of goodness, and that in spite of their multiplicity there was unity,--a supreme Intelligence that governed the world. Hence he was hated by the Sophists, who denied the certainty of arriving at any knowledge of God. From the comparative worthlessness of the body he deduced the immortality of the soul. With him the end of life was reason and intelligence. He deduced the existence of God from the order and harmony of Nature, belief in which was irresistible. He endeavored to connect the moral with the religious consciousness, and thus to promote the practical welfare of society. In this light Socrates stands out the grandest personage of Pagan antiquity,--as a moralist, as a teacher of ethics, as a man who recognized the Divine.
So far as he was concerned in the development of Greek philosophy proper, he was inferior to some of his disciples, Yet he gave a turning-point to a new period when he awakened the idea of knowledge, and was the founder of the method of scientific inquiry, since he pointed out the legitimate bounds of inquiry, and was thus the precursor of Bacon and Pascal. He did not attempt to make physics explain metaphysics, nor metaphysics the phenomena of the natural world; and he reasoned only from what was generally assumed to be true and invariable. He was a great pioneer of philosophy, since he resorted to inductive methods of proof, and gave general definiteness to ideas. Although he employed induction, it was his aim to withdraw the mind from the contemplation of Nature, and to fix it on its own phenomena,--to look inward rather than outward; a method carried out admirably by his pupil Plato. The previous philosophers had given their attention to external nature; Socrates gave up speculations about material phenomena, and directed his inquiries solely to the nature of knowledge. And as he considered knowledge to be identical with virtue, he speculated on ethical questions mainly, and the method which he taught was that by which alone man could become better and wiser. To know one's self,--in other words, that "the proper study of mankind is man,"--he proclaimed with Thales. Cicero said of him, "Socrates brought down philosophy from the heavens to the earth." He did not disdain the subjects which chiefly interested the Sophists,--astronomy, rhetoric, physics,--but he chiefly discussed moral questions, such as, What is piety? What is the just and the unjust? What is temperance? What is courage? What is the character fit for a citizen?--and other ethical points, involving practical human relationships.
These questions were discussed by Socrates in a striking manner, and by a method peculiarly his own. "Professing ignorance, he put perhaps this question: What is law? It was familiar, and was answered offhand. Socrates, having got the answer, then put fresh questions applicable to specific cases, to which the respondent was compelled to give an answer inconsistent with the first, thus showing that the definition was too narrow or too wide, or defective in some essential condition. The respondent then amended his answer; but this was a prelude to other questions, which could only be answered in ways inconsistent with the amendment; and the respondent, after many attempts to disentangle himself, was obliged to plead guilty to his inconsistencies, with an admission that he could make no satisfactory answer to the original inquiry which had at first appeared so easy." Thus, by this system of cross-examination, he showed the intimate connection between the dialectic method and the logical distribution of particulars into species and genera. The discussion first turns upon the meaning of some generic term; the queries bring the answers into collision with various particulars which it ought not to comprehend, or which it ought to comprehend, but does not. Socrates broke up the one into many by his analytical string of questions, which was a mode of argument by which he separated real knowledge from the conceit of knowledge, and led to precision in the use of definitions. It was thus that he exposed the false, without aiming even to teach the true; for he generally professed ignorance on his part, and put himself in the attitude of a learner, while by his cross-examinations he made the man from whom he apparently sought knowledge to appear as ignorant as himself, or, still worse, absolutely ridiculous.