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.
Thus Socrates pulled away all the foundations on which a false science had been erected, and indicated the mode by which alone the true could be established. Here he was not unlike Bacon, who pointed out the way whereby science could be advanced, without founding any school or advocating any system; but the Athenian was unlike Bacon in the object of his inquiries. Bacon was disgusted with ineffective _logical_ speculations, and Socrates with ineffective _physical_ researches. He never suffered a general term to remain undetermined, but applied it at once to particulars, and by questions the purport of which was not comprehended. It was not by positive teaching, but by exciting scientific impulse in the minds of others, or stirring up the analytical faculties, that Socrates manifested originality. It was his aim to force the seekers after truth into the path of inductive generalization, whereby alone trustworthy conclusions could be formed. He thus struck out from his own and other minds that fire which sets light to original thought and stimulates analytical inquiry. He was a religious and intellectual missionary, preparing the way for the Platos and Aristotles of the succeeding age by his severe dialectics. This was his mission, and he declared it by talking. He did not lecture; he conversed. For more than thirty years he discoursed on the principles of morality, until he arrayed against himself enemies who caused him to be put to death, for his teachings had undermined the popular system which the Sophists accepted and practised. He probably might have been acquitted if he had chosen to be, but he did not wish to live after his powers of usefulness had passed away.
The services which Socrates rendered to philosophy, as enumerated by Tennemann, "are twofold,--negative and positive. _Negative_, inasmuch as he avoided all vain discussions; combated mere speculative reasoning on substantial grounds; and had the wisdom to acknowledge ignorance when necessary, but without attempting to determine accurately what is capable and what is not of being accurately known. _Positive_, inasmuch as he examined with great ability the ground directly submitted to our understanding, and of which man is the centre."
Socrates cannot be said to have founded a school, like Xenophanes. He did not bequeath a system of doctrines. He had however his disciples, who followed in the path which he suggested. Among these were Aristippus, Antisthenes, Euclid of Megara, Phaedo of Elis, and Plato, all of whom were pupils of Socrates and founders of schools. Some only partially adopted his method, and each differed from the other. Nor can it be said that all of them advanced science. Aristippus, the founder of the Cyreniac school, was a sort of philosophic voluptuary, teaching that pleasure is the end of life. Antisthenes, the founder of the Cynics, was both virtuous and arrogant, placing the supreme good in virtue, but despising speculative science, and maintaining that no man can refute the opinions of another. He made it a virtue to be ragged, hungry, and cold, like the ancient monks; an austere, stern, bitter, reproachful man, who affected to despise all pleasures,--like his own disciple Diogenes, who lived in a tub, and carried on a war between the mind and body, brutal, scornful, proud. To men who maintained that science was impossible, philosophy is not much indebted, although they were disciples of Socrates. Euclid--not the mathematician, who was about a century later--merely gave a new edition of the Eleatic doctrines, and Phaedo speculated on the oneness of "the good."
It was not till Plato arose that a more complete system of philosophy was founded. He was born of noble Athenian parents, 429 B.C., the year that Pericles died, and the second year of the Peloponnesian War,--the most active period of Grecian thought. He had a severe education, studying mathematics, poetry, music, rhetoric, and blending these with philosophy. He was only twenty when he found out Socrates, with whom he remained ten years, and from whom he was separated only by death. He then went on his travels, visiting everything worth seeing in his day, especially in Egypt. When he returned he began to teach the doctrines of his master, which he did, like him, gratuitously, in a garden near Athens, planted with lofty plane-trees and adorned with temples and statues. This was called the Academy, and gave a name to his system of philosophy. It is this only with which we have to do. It is not the calm, serious, meditative, isolated man that I would present, but _his contribution_ to the developments of philosophy on the principles of his master. Surely no man ever made a richer contribution to this department of human inquiry than Plato. He may not have had the originality or keenness of Socrates, but he was more profound. He was pre-eminently a great thinker, a great logician, skilled in dialectics; and his "Dialogues" are such perfect exercises of dialectical method that the ancients were divided as to whether he was a sceptic or a dogmatist. He adopted the Socratic method and enlarged it. Says Lewes:--
"Analysis, as insisted on by Plato, is the decomposition of the whole into its separate parts,--is seeing the one in many.... The individual thing was transitory; the abstract idea was eternal. Only concerning the latter could philosophy occupy itself. Socrates, insisting on proper definitions, had no conception of the classification of those definitions which must constitute philosophy. Plato, by the introduction of this process, shifted philosophy from the ground of inquiries into man and society, which exclusively occupied Socrates, to that of dialectics."
Plato was also distinguished for skill in composition. Dionysius of Halicarnassus classes him with Herodotus and Demosthenes in the perfection of his style, which is characterized by great harmony and rhythm, as well as by a rich variety of elegant metaphors.
Plato made philosophy to consist in the discussion of general terms, or abstract ideas. General terms were synonymous with real existences, and these were the only objects of philosophy. These were called _Ideas_; and ideas are the basis of his system, or rather the subject-matter of dialectics. He maintained that every general term, or abstract idea, has a real and independent existence; nay, that the mental power of conceiving and combining ideas, as contrasted with the mere impressions received from matter and external phenomena, is the only real and permanent existence. Hence his writings became the great fountain-head of the Ideal philosophy. In his assertion of the real existence of so abstract and supersensuous a thing as an idea, he probably was indebted to Pythagoras, for Plato was a master of the whole realm of philosophical speculation; but his conception of _ideas_ as the essence of being is a great advance on that philosopher's conception of _numbers_. He was taught by Socrates that beyond this world of sense there is the world of eternal truth, and that there are certain principles concerning which there can be no dispute. The soul apprehends the idea of goodness, greatness, etc. It is in the celestial world that we are to find the realm of ideas. Now, God is the supreme idea. To know God, then, should be the great aim of life. We know him through the desire which like feels for like. The divinity within feels its affinity with the divinity revealed in beauty, or any other abstract idea. The longing of the soul for beauty is _love_. Love, then, is the bond which unites the human with the divine. Beauty is not revealed by harmonious outlines that appeal to the senses, but is _truth_; it is divinity. Beauty, truth, love, these are God, whom it is the supreme desire of the soul to comprehend, and by the contemplation of whom the mortal soul sustains itself. Knowledge of God is the great end of life; and this knowledge is effected by dialectics, for only out of dialectics can correct knowledge come. But man, immersed in the flux of sensualities, can never fully attain this knowledge of God, the object of all rational inquiry. Hence the imperfection of all human knowledge. The supreme good is attainable; it is not attained. God is the immutable good, and justice the rule of the universe. "The vital principle of Plato's philosophy," says Ritter, "is to show that true science is the knowledge of the good, is the eternal contemplation of truth, or ideas; and though man may not be able to apprehend it in its unity, because he is subject to the restraints of the body, he is nevertheless permitted to recognize it imperfectly by calling to mind the eternal measure of existence by which he is in his origin connected." To quote from Ritter again:--
"When we review the doctrines of Plato, it is impossible to deny that they are pervaded with a grand view of life and the universe. This is the noble thought which inspired him to say that God is the constant and immutable good; the world is good in a state of becoming, and the human soul that in and through which the good in the world is to be consummated. In his sublimer conception he shows himself the worthy disciple of Socrates.... While he adopted many of the opinions of his predecessors, and gave due consideration to the results of the earlier philosophy, he did not allow himself to be disturbed by the mass of conflicting theories, but breathed into them the life-giving breath of unity. He may have erred in his attempts to determine the nature of good; still he pointed out to all who aspire to a knowledge of the divine nature an excellent road by which they may arrive at it."
That Plato was one of the greatest lights of the ancient world there can be no reasonable doubt. Nor is it probable that as a dialectician he has ever been surpassed, while his purity of life and his lofty inquiries and his belief in God and immortality make him, in an ethical point of view, the most worthy of the disciples of Socrates. He was to the Greeks what Kant was to the Germans; and these two great thinkers resemble each other in the structure of their minds and their relations to society.
The ablest part of the lectures of Archer Butler, of Dublin, is devoted to the Platonic philosophy. It is at once a criticism and a eulogium. No modern writer has written more enthusiastically of what he considers the crowning excellence of the Greek philosophy. The dialectics of Plato, his ideal theory, his physics, his psychology, and his ethics are most ably discussed, and in the spirit of a loving and eloquent disciple. Butler represents the philosophy which he so much admires as a contemplation of, and a tendency to, the absolute and eternal good. As the admirers of Ralph Waldo Emerson claim that he, more than any other man of our times, entered into the spirit of the Platonic philosophy, I introduce some of his most striking paragraphs of subdued but earnest admiration of the greatest intellect of the ancient Pagan world, hoping that they may be clearer to others than they are to me:--
These sentences [of Plato] contain the culture of nations; these are the corner-stone of schools; these are the fountain-head of literatures. A discipline it is in logic, arithmetic, taste, symmetry, poetry, language, rhetoric, ontology, morals, or practical wisdom. There never was such a range of speculation. Out of Plato come all things that are still written and debated among men of thought. Great havoc makes he among our originalities. We have reached the mountain from which all these drift-bowlders were detached.... Plato, in Egypt and in Eastern pilgrimages, imbibed the idea of one Deity, in which all things are absorbed. The unity of Asia and the detail of Europe, the infinitude of the Asiatic soul and the defining, result-loving, machine-making, surface-seeking, opera-going Europe Plato came to join, and by contact to enhance the energy of each. The excellence of Europe and Asia is in his brain. Metaphysics and natural philosophy expressed the genius of Europe; he substricts the religion of Asia as the base. In short, a balanced soul was born, perceptive of the two elements.... The physical philosophers had sketched each his theory of the world; the theory of atoms, of fire, of flux, of spirit,--theories mechanical and chemical in their genius. Plato, a master of mathematics, studious of all natural laws and causes, feels these, as second causes, to be no theories of the world, but bare inventories and lists. To the study of Nature he therefore prefixes the dogma,--'Let us declare the cause which led the Supreme Ordainer to produce and compose the universe. He was good; ... he wished that all things should be as much as possible like himself.'...
Plato ... represents the privilege of the intellect,--the power, namely, of carrying up every fact to successive platforms, and so disclosing in every fact a germ of expansion.... These expansions, or extensions, consist in continuing the spiritual sight where the horizon falls on our natural vision, and by this second sight discovering the long lines of law which shoot in every direction.... His definition of ideas as what is simple, permanent, uniform, and self-existent, forever discriminating them from the notions of the understanding, marks an era in the world.
The great disciple of Plato was Aristotle, and he carried on the philosophical movement which Socrates had started to the highest limit that it ever reached in the ancient world. He was born at Stagira, 384 B.C., and early evinced an insatiable thirst for knowledge. When Plato returned from Sicily Aristotle joined his disciples at Athens, and was his pupil for seventeen years. On the death of Plato, he went on his travels and became the tutor of Alexander the Great, and in 335 B.C. returned to Athens after an absence of twelve years, and set up a school in the Lyceum. He taught while walking up and down the shady paths which surrounded it, from which habit he obtained the name of the Peripatetic, which has clung to his name and philosophy. His school had a great celebrity, and from it proceeded illustrious philosophers, statesmen, historians, and orators. Aristotle taught for thirteen years, during which time he composed most of his greater works. He not only wrote on dialectics and logic, but also on physics in its various departments. His work on "The History of Animals" was deemed so important that his royal pupil Alexander presented him with eight hundred talents--an enormous sum--for the collection of materials. He also wrote on ethics and politics, history and rhetoric,--pouring out letters, poems, and speeches, three-fourths of which are lost. He was one of the most voluminous writers of antiquity, and probably is the most learned man whose writings have come down to us. Nor has any one of the ancients exercised upon the thinking of succeeding ages so wide an influence. He was an oracle until the revival of learning. Hegel says:--
"Aristotle penetrated into the whole mass, into every department of the universe of things, and subjected to the comprehension its scattered wealth; and the greater number of the philosophical sciences owe to him their separation and commencement."
He is also the father of the history of philosophy, since he gives an historical review of the way in which the subject has been hitherto treated by the earlier philosophers. Says Adolph Stahr:--
"Plato made the external world the region of the incomplete and bad, of the contradictory and the false, and recognized absolute truth only in the eternal immutable ideas. Aristotle laid down the proposition that the idea, which cannot of itself fashion itself into reality, is powerless, and has only a potential existence; and that it becomes a living reality only by realizing itself in a creative manner by means of its own energy."
There can be no doubt as to Aristotle's marvellous power of systematizing. Collecting together all the results of ancient speculation, he so combined them into a co-ordinate system that for a thousand years he reigned supreme in the schools. From a literary point of view, Plato was doubtless his superior; but Plato was a poet, making philosophy divine and musical, while Aristotle's investigations spread over a far wider range. He differed from Plato chiefly in relation to the doctrine of ideas, without however resolving the difficulty which divided them. As he made matter to be the eternal ground of phenomena, he reduced the notion of it to a precision it never before enjoyed, and established thereby a necessary element in human science. But being bound to matter, he did not soar, as Plato did, into the higher regions of speculation; nor did he entertain as lofty views of God or of immortality. Neither did he have as high an ideal of human life; his definition of the highest good was a perfect practical activity in a perfect life.
With Aristotle closed the great Socratic movement in the history of speculation. When Socrates appeared there was a general prevalence of scepticism, arising from the unsatisfactory speculations respecting Nature. He removed this scepticism by inventing a new method of investigation, and by withdrawing the mind from the contemplation of Nature to the study of man himself. He bade men to look inward. Plato accepted his method, but applied it more universally. Like Socrates, however, ethics were the great subject of his inquiries, to which physics were only subordinate. The problem he sought to solve was the way to live like the Deity; he would contemplate truth as the great aim of life. With Aristotle, ethics formed only one branch of attention; his main inquiries were in reference to physics and metaphysics. He thus, by bringing these into the region of inquiry, paved the way for a new epoch of scepticism.
Both Plato and Aristotle taught that reason alone can form science; but, as we have said, Aristotle differed from his master respecting the theory of ideas. He did not deny to ideas a _subjective_ existence, but he did deny that they have an objective existence. He maintained that individual things alone _exist_; and if individuals alone exist, they can be known only by _sensation_. Sensation thus becomes the basis of knowledge. Plato made _reason_ the basis of knowledge, but Aristotle made _experience_ that basis. Plato directed man to the contemplation of Ideas; Aristotle, to the observation of Nature. Instead of proceeding synthetically and dialectically like Plato, he pursues an analytic course. His method is hence inductive,--the derivation of certain principles from a sum of given facts and phenomena. It would seem that positive science began with Aristotle, since he maintained that experience furnishes the principles of every science; but while his conception was just, there was not at that time a sufficient amount of experience from which to generalize with effect. It is only a most extensive and exhaustive examination of the accuracy of a proposition which will warrant secure reasoning upon it. Aristotle reasoned without sufficient certainty of the major premise of his syllogisms.
Aristotle was the father of logic, and Hegel and Kant think there has been no improvement upon it since his day. This became to him the real organon of science. "He supposed it was not merely the instrument of thought, but the instrument of investigation." Hence it was futile for purposes of discovery, although important to aid processes of thought. Induction and syllogism are the two great features of his system of logic. The one sets out from particulars already known to arrive at a conclusion; the other sets out from some general principle to arrive at particulars. The latter more particularly characterized his logic, which he presented in sixteen forms, the whole evincing much ingenuity and skill in construction, and presenting at the same time a useful dialectical exercise. This syllogistic process of reasoning would be incontrovertible, if the _general_ were better known than the _particular_; but it is only by induction, which proceeds from the world of experience, that we reach the higher world of cognition. Thus Aristotle made speculation subordinate to logical distinctions, and his system, when carried out by the mediaeval Schoolmen, led to a spirit of useless quibbling. Instead of interrogating Nature they interrogated their own minds, and no great discoveries were made. From want of proper knowledge of the conditions of scientific inquiry, the method of Aristotle became fruitless for him; but it was the key by which future investigators were enabled to classify and utilize their vastly greater collection of facts and materials.
Though Aristotle wrote in a methodical manner, his writings exhibit great parsimony of language. There is no fascination in his style. It is without ornament, and very condensed. His merit consisted in great logical precision and scrupulous exactness in the employment of terms.
Philosophy, as a great system of dialectics, as an analysis of the power and faculties of the mind, as a method to pursue inquiries, culminated in Aristotle. He completed the great fabric of which Thales laid the foundation. The subsequent schools of philosophy directed attention to ethical and practical questions, rather than to intellectual phenomena. The Sceptics, like Pyrrho, had only negative doctrines, and held in disdain those inquiries which sought to penetrate the mysteries of existence. They did not believe that absolute truth was attainable by man; and they attacked the prevailing systems with great plausibility. They pointed out the uncertainty of things, and the folly of striving to comprehend them.
The Epicureans despised the investigations of philosophy, since in their view these did not contribute to happiness. The subject of their inquiries was happiness, not truth. What will promote this? was the subject of their speculation. Epicurus, born 342 B.C., contended that pleasure was happiness; that pleasure should be sought not for its own sake, but with a view to the happiness of life obtained by it. He taught that happiness was inseparable from virtue, and that its enjoyments should be limited. He was averse to costly pleasures, and regarded contentedness with a little to be a great good. He placed wealth not in great possessions, but in few wants. He sought to widen the domain of pleasure and narrow that of pain, and regarded a passionless state of life as the highest. Nor did he dread death, which was deliverance from misery, as the Buddhists think. Epicurus has been much misunderstood, and his doctrines were subsequently perverted, especially when the arts of life were brought into the service of luxury, and a gross materialism was the great feature of society. Epicurus had much of the spirit of a practical philosopher, although very little of the earnest cravings of a religious man. He himself led a virtuous life, because he thought it was wiser and better and more productive of happiness to be virtuous, not because it was his duty. His writings were very voluminous, and in his tranquil garden he led a peaceful life of study and enjoyment. His followers, and they were numerous, were led into luxury and effeminacy,--as was to be expected from a sceptical and irreligious philosophy, the great principle of which was that whatever is pleasant should be the object of existence. Sir James Mackintosh says:--
"To Epicurus we owe the general concurrence of reflecting men in succeeding times in the important truth that men cannot be happy without a virtuous frame of mind and course of life,--a truth of inestimable value, not peculiar to the Epicureans, but placed by their exaggerations in a stronger light; a truth, it must be added, of less importance as a motive to right conduct than to the completeness of moral theory, which, however, it is very far from solely constituting. With that truth the Epicureans blended another position,--that because virtue promotes happiness, every act of virtue must be done in order to promote the happiness of the agent. Although, therefore, he has the merit of having more strongly inculcated the connection of virtue with happiness, yet his doctrine is justly charged with indisposing the mind to those exalted and generous sentiments without which no pure, elevated, bold, or tender virtues can exist."
The Stoics were a large and celebrated sect of philosophers; but they added nothing to the domain of thought,--they created no system, they invented no new method, they were led into no new psychological inquiries. Their inquiries were chiefly ethical; and since ethics are a great part of the system of Greek philosophy, the Stoics are well worthy of attention. Some of the greatest men of antiquity are numbered among them,--like Seneca, Epictetus, and Marcus Aurelius. The philosophy they taught was morality, and this was eminently practical and also elevated.
The founder of this sect, Zeno, was born, it is supposed, on the island of Cyprus, about the year 350 B.C. He was the son of wealthy parents, but was reduced to poverty by misfortune. He was so good a man, and so profoundly revered by the Athenians, that they intrusted to him the keys of their citadel. He lived in a degenerate age, when scepticism and sensuality were eating out the life and vigor of Grecian society, when Greek civilization was rapidly passing away, when ancient creeds had lost their majesty, and general levity and folly overspread the land. Deeply impressed with the prevailing laxity of morals and the absence of religion, he lifted up his voice more as a reformer than as an inquirer after truth, and taught for more than fifty years in a place called the _Stoa_, "the Porch," which had once been the resort of the poets. Hence the name of his school. He was chiefly absorbed with ethical questions, although he studied profoundly the systems of the old philosophers. "The Sceptics had attacked both perception and reason. They had shown that perception is after all based upon appearance, and appearance is not a certainty; and they showed that reason is unable to distinguish between appearance and certainty, since it had nothing but phenomena to build upon, and since there is no criterion to apply to reason itself." Then they proclaimed philosophy a failure, and without foundation. But Zeno, taking a stand on common-sense, fought for morality, as did Buddha before him, and long after him Reid and Beattie, when they combated the scepticism of Hume.
Philosophy, according to Zeno and other Stoics, was intimately connected with the duties of practical life. The contemplation, meditation, and thought recommended by Plato and Aristotle seemed only a covert recommendation of selfish enjoyment. The wisdom which it should be the aim of life to attain is virtue; and virtue is to live harmoniously with Nature. To live harmoniously with Nature is to exclude all personal ends; hence pleasure is to be disregarded, and pain is to be despised. And as all moral action must be in harmony with Nature the law of destiny is supreme, and all things move according to immutable fate. With the predominant tendency to the universal which characterized their system, the Stoics taught that the sage ought to regard himself as a citizen of the world rather than of any particular city or state. They made four things to be indispensable to virtue,--a knowledge of _good_ and _evil_, which is the province of the reason; _temperance_, a knowledge of the due regulation of the sensual passions; _fortitude_, a conviction that it is good to suffer what is necessary; and _justice_, or acquaintance with what ought to be to every individual. They made _perfection_ necessary to virtue; hence the severity of their system. The perfect sage, according to them, is raised above all influence of external events; he submits to the law of destiny; he is exempt from desire and fear, joy or sorrow; he is not governed even by what he is exposed to necessarily, like sorrow and pain; he is free from the restraints of passion; he is like a god in his mental placidity. Nor must the sage live only for himself, but for others also; he is a member of the whole body of mankind. He ought to marry, and to take part in public affairs; but he is to attack error and vice with uncompromising sternness, and will never weakly give way to compassion or forgiveness. Yet with this ideal the Stoics were forced to admit that virtue, like true knowledge, although theoretically attainable is practically beyond the reach of man. They were discontented with themselves and with all around them, and looked upon all institutions as corrupt. They had a profound contempt for their age, and for what modern society calls "success in life;" but it cannot be denied that they practised a lofty and stern virtue in their degenerate times. Their God was made subject to Fate; and he was a material god, synonymous with Nature. Thus their system was pantheistic. But they maintained the dignity of reason, and sought to attain to virtues which it is not in the power of man fully to reach.
Zeno lived to the extreme old age of ninety-eight, although his constitution was not strong. He retained his powers by great abstemiousness, living chiefly on figs, honey, and bread. He was a modest and retiring man, seldom mingling with a crowd, or admitting the society of more than two or three friends at a time. He was as plain in his dress as he was frugal in his habits,--a man of great decorum and propriety of manners, resembling noticeably in his life and doctrines the Chinese sage Confucius. And yet this good man, a pattern to the loftiest characters of his age, strangled himself. Suicide was not deemed a crime by his followers, among whom were some of the most faultless men of antiquity, especially among the Romans. The doctrines of Zeno were never popular, and were confined to a small though influential party.
With the Stoics ended among the Greeks all inquiry of a philosophical nature worthy of especial mention, until centuries later, when philosophy was revived in the Christian schools of Alexandria, where the Hebrew element of faith was united with the Greek ideal of reason. The struggles of so many great thinkers, from Thales to Aristotle, all ended in doubt and in despair. It was discovered that all of them were wrong, or rather partial; and their error was without a remedy, until "the fulness of time" should reveal more clearly the plan of the great temple of Truth, in which they were laying foundation stones.
The bright and glorious period of Greek philosophy was from Socrates to Aristotle. Philosophical inquiries began about the origin of things, and ended with an elaborate systematization of the forms of thought, which was the most magnificent triumph that the unaided intellect of man ever achieved. Socrates does not found a school, nor elaborate a system. He reveals most precious truths, and stimulates the youth who listen to his instructions by the doctrine that it is the duty of man to pursue a knowledge of himself, which is to be sought in that divine reason which dwells within him, and which also rules the world. He believes in science; he loves truth for its own sake; he loves virtue, which consists in the knowledge of the good.
Plato seizes the weapons of his great master, and is imbued with his spirit. He is full of hope for science and humanity. With soaring boldness he directs his inquiries to futurity, dissatisfied with the present, and cherishing a fond hope of a better existence. He speculates on God and the soul. He is not much interested in physical phenomena; he does not, like Thales, strive to find out the beginning of all things, but the highest good, by which his immortal soul may be refreshed and prepared for the future life, in which he firmly believes. The sensible is an impenetrable empire; but ideas are certitudes, and upon these he dwells with rapt and mystical enthusiasm,--a great poetical rhapsodist, severe dialectician as he is, believing in truth and beauty and goodness.
Then Aristotle, following out the method of his teachers, attempts to exhaust experience, and directs his inquiries into the outward world of sense and observation, but all with the view of discovering from phenomena the unconditional truth, in which he too believes. But everything in this world is fleeting and transitory, and therefore it is not easy to arrive at truth. A cold doubt creeps into the experimental mind of Aristotle, with all his learning and his logic.
The Epicureans arise. Misreading or corrupting the purer teaching of their founder, they place their hopes in sensual enjoyment. They despair of truth.
But the world will not be abandoned to despair. The Stoics rebuke the impiety which is blended with sensualism, and place their hopes on virtue. Yet it is unattainable virtue, while their God is not a moral governor, but subject to necessity.
Thus did those old giants grope about, for they did not know the God who was revealed unto the more spiritual sense of Abraham, Moses, David, and Isaiah. And yet with all their errors they were the greatest benefactors of the ancient world. They gave dignity to intellectual inquiries, while by their lives they set examples of a pure morality.
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The Romans added absolutely nothing to the philosophy of the Greeks. Nor were they much interested in any speculative inquiries. It was only the ethical views of the old sages which had attraction or force to them. They were too material to love pure subjective inquiries. They had conquered the land; they disdained the empire of the air.
There were doubtless students of the Greek philosophy among the Romans, perhaps as early as Cato the Censor. But there were only two persons of note in Rome who wrote philosophy, till the time of Cicero,--Aurafanius and Rubinus,--and these were Epicureans.
Cicero was the first to systematize the philosophy which contributed so greatly to his intellectual culture, But even he added nothing; he was only a commentator and expositor. Nor did he seek to found a system or a school, but merely to influence and instruct men of his own rank. Those subjects which had the greatest attraction for the Grecian schools Cicero regarded as beyond the power of human cognition, and therefore looked upon the practical as the proper domain of human inquiry. Yet he held logic in great esteem, as furnishing rules for methodical investigation. He adopted the doctrine of Socrates as to the pursuit of moral good, and regarded the duties which grow out of the relations of human society as preferable to those of pursuing scientific researches. He had a great contempt for knowledge which could lead neither to the clear apprehension of certitude nor to practical applications. He thought it impossible to arrive at a knowledge of God, or the nature of the soul, or the origin of the world; and thus he was led to look upon the sensible and the present as of more importance than inconclusive inductions, or deductions from a truth not satisfactorily established.
Cicero was an eclectic, seizing on what was true and clear in the ancient systems, and disregarding what was simply a matter of speculation. This is especially seen in his treatise "De Finibus Bonorum et Malorum," in which the opinions of all the Grecian schools concerning the supreme good are expounded and compared. Nor does he hesitate to declare that the highest happiness consists in the knowledge of Nature and science, which is the true source of pleasure both to gods and men. Yet these are but hopes, in which it does not become us to indulge. It is the actual, the real, the practical, which pre-eminently claims attention,--in other words, the knowledge which will furnish man with a guide and rule of life. Even in the consideration of moral questions Cicero is pursued by the conflict of opinions, although in this department he is most at home. The points he is most anxious to establish are the doctrines of God and the soul. These are most fully treated in his essay "De Natura Deorum," in which he submits the doctrines of the Epicureans and the Stoics to the objections of the Academy. He admits that man is unable to form true conceptions of God, but acknowledges the necessity of assuming one supreme God as the creator and ruler of all things, moving all things, remote from all mortal mixture, and endued with eternal motion in himself. He seems to believe in a divine providence ordering good to man, in the soul's immortality, in free-will, in the dignity of human nature, in the dominion of reason, in the restraint of the passions as necessary to virtue, in a life of public utility, in an immutable morality, in the imitation of the divine.
Thus there is little of original thought in the moral theories of Cicero, which are the result of observation rather than of any philosophical principle. We might enumerate his various opinions, and show what an enlightened mind he possessed; but this would not be the development of philosophy. His views, interesting as they are, and generally wise and lofty, do not indicate any progress of the science. He merely repeats earlier doctrines. These were not without their utility, since they had great influence on the Latin fathers of the Christian Church. He was esteemed for his general enlightenment. He softened down the extreme views of the great thinkers before his day, and clearly unfolded what had become obscured. He was a critic of philosophy, an expositor whom we can scarcely spare.
If anybody advanced philosophy among the Romans it was Epictetus, and even he only in the realm of ethics. Quintius Sextius, in the time of Augustus, had revived the Pythagorean doctrines. Seneca had recommended the severe morality of the Stoics, but added nothing that was not previously known.
The greatest light among the Romans was the Phrygian slave Epictetus, who was born about fifty years after the birth of Jesus Christ, and taught in the time of the Emperor Domitian. Though he did not leave any written treatises, his doctrines were preserved and handed down by his disciple Arrian, who had for him the reverence that Plato had for Socrates. The loftiness of his recorded views has made some to think that he must have been indebted to Christianity, for no one before him revealed precepts so much in accordance with its spirit. He was a Stoic, but he held in the highest estimation Socrates and Plato. It is not for the solution of metaphysical questions that he was remarkable. He was not a dialectician, but a moralist, and as such takes the highest ground of all the old inquirers after truth. With him, as to Cicero and Seneca, philosophy is the wisdom of life. He sets no value on logic, nor much on physics; but he reveals sentiments of great simplicity and grandeur. His great idea is the purification of the soul. He believes in the severest self-denial; he would guard against the siren spells of pleasure; he would make men feel that in order to be good they must first feel that they are evil. He condemns suicide, although it had been defended by the Stoics. He would complain of no one, not even as to injustice; he would not injure his enemies; he would pardon all offences; he would feel universal compassion, since men sin from ignorance; he would not easily blame, since we have none to condemn but ourselves. He would not strive after honor or office, since we put ourselves in subjection to that we seek or prize; he would constantly bear in mind that all things are transitory, and that they are not our own. He would bear evils with patience, even as he would practise self-denial of pleasure. He would, in short, be calm, free, keep in subjection his passions, avoid self-indulgence, and practise a broad charity and benevolence. He felt that he owed all to God,--that all was his gift, and that we should thus live in accordance with his will; that we should be grateful not only for our bodies, but for our souls and reason, by which we attain to greatness. And if God has given us such a priceless gift, we should be contented, and not even seek to alter our external relations, which are doubtless for the best. We should wish, indeed, for only what God wills and sends, and we should avoid pride and haughtiness as well as discontent, and seek to fulfil our allotted part. |
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