[Sidenote: The mission of Socrates.]

[Sidenote: The great aim of the Socratic method.]

So far as he was concerned in the development of Grecian philosophy proper, he was probably 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 theory of scientific knowledge, since he separated 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 only reasoned from what was a.s.sumed 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. [Footnote: Arist., _Metaph_., xiii. 4.] He gave a new method, and used great precision of language. 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, as carried out so admirably by Plato. The previous philosophers had given their attention to external nature; he 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 was the first to proclaim. He did not disdain the subjects which chiefly interested the Sophists,--astronomy, rhetoric, physics; but he 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 such like ethical points. And he discussed them in a peculiar manner, in a method peculiarly his own. "Professing ignorance, he put perhaps this question--What is law? It was familiar and was answered off-hand. 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. [Footnote: Grote, part ii. ch. 68.] 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. He broke up the one into many by his a.n.a.lytical string of questions, which was a novel mode of argument. This was the method which he invented, and 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, and put himself in the att.i.tude of a learner, while he made by his cross- examinations the man from whom he apparently sought knowledge to be as ignorant as himself, or, still worse, absolutely ridiculous. Thus he pulled away all the foundations on which a false science had been erected, and indicated the way by which alone the true could be established. Here he was not unlike Bacon, who pointed out the way that science could be advanced, without founding any school or advocating any system; but he was unlike Bacon in the object of his inquiries. Bacon was disgusted with ineffective _logical_ speculations, and Socrates with ineffective _physical_ researches. [Footnote: Archer Butler, s. i. 1. vii.] 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 a.n.a.lytical faculties, which const.i.tute his originality. "The Socratic dialectics, clearing away," says Grote, [Footnote: Grote, part ii. ch.

68; Maurice, _Ancient Philosophy_, p. 119.] "from the mind its mist of fancied knowledge, and, laying bare the real ignorance, produced an immediate effect like the touch of the torpedo; the newly created consciousness of ignorance was humiliating and painful, yet it was combined with a yearning after truth never before experienced. Such intellectual quickening, which could never commence until the mind had been disabused of its original illusion of false knowledge, was considered by Socrates not merely as the index and precursor, but as the indisputable condition of future progress." It was the aim of Socrates to force the seekers after truth into the path of inductive generalization, whereby alone trustworthy conclusions could be formed.

He thus improved the method of speculative minds, and struck out from other minds that fire which sets light to original thought and stimulates a.n.a.lytical 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 practiced. He probably might have been acquitted if he had chosen it, but he did not wish to live after his powers of usefulness had pa.s.sed away. He opened to science new matter and a new method, as a basis for future philosophical systems. He was a "colloquial dialectician," such as this world has never seen, and may never see again. He was a skeptic respecting physics, but as far as man and society are concerned, he thought that every man might and ought to know what justice, temperance, courage, piety, patriotism, etc., were, and unless he did know what they were he would not be just, temperate, etc.

He denied that men can know that on which they have bestowed no pains, or practice what they do not know. "The method of Socrates survives still in some of the dialogues of Plato, and is a process of eternal value and universal application. There is no man whose notions have not been first got together by spontaneous, unartificial a.s.sociations, resting upon forgotten particulars, blending together disparities or inconsistencies, and having in his mind old and familiar phrases and oracular propositions of which he has never rendered to himself an account; and there is no man who has not found it a necessary branch of self-education to break up, a.n.a.lyze, and reconstruct these ancient mental compounds." [Footnote: Grote has written very ably, and at unusual length, respecting Socrates and his philosophy. Thirlwall has also reviewed Hegel and other German authors on Socrates' condemnation.

Ritter has a full chapter of great value. See Donaldson's continuation of Muller. The original sources of knowledge respecting Socrates are found chiefly in Plato and Xenophon. Cicero may be consulted in his _Tusculan Questions_.] The services which he rendered to philosophy, as enumerated by Tennemann, [Footnote: Tennemann; Schliermacker, _Essay on the Worth of Socrates as a Philosopher_, translated by Bishop Thirlwall, and reprinted in Dr. Wigger's _Life of Socrates_.] "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 rather attempted to awaken inquiry, for which his method was admirably adapted. He had his admirers, 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 disciples of Socrates, and founders of schools. Some only partially adopted his method, and all differed from each other. Nor can it be said that all of them advanced science. Aristippus, the founder of the Cyreniac School, was a sort of Epicurean, teaching that pleasure was 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 merely gave a new edition of the Eleatic doctrines, and Phaedo speculated on the oneness of the good.

[Sidenote: Plato.]

[Sidenote: His education and travels.]

[Sidenote: He adopts the Socratic method.]

It was not till Plato arose that a more complete system of philosophy was founded. He was born of n.o.ble Athenian parents B.C. 429, the year that Pericles died, and the second year of the Peloponnesian War, and the most active period of Grecian thought. He had a severe education, studying 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 every thing worth seeing in his day, especially in Egypt. When he returned, he commenced 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. And 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. And surely no man ever made a richer contribution. He may not have had the originality or breadth of Socrates, but he was more profound. He was preeminently a great thinker--a great logician--skilled in dialectics, and his "Dialogues" are such exercises of dialectical method that the ancients were divided whether he was a skeptic or a dogmatist. He adopted the Socratic method, and enlarged it. "Socrates relied on inductive reasoning, and on definitions, as the two principles of investigation. Definitions form the basis of all philosophy. To know a thing, you must know what it is not. Plato added a more efficient process of a.n.a.lysis and synthesis, of generalization and cla.s.sification." [Footnote: Lewes, _Biog. Hist. of Philos_.]

"a.n.a.lysis," continues the same author, "as insisted on by Plato, is the decomposition of the whole into its separate parts--is seeing the _one_ in many. Definitions were to Plato, what general or abstract ideas were to later metaphysicians. 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 cla.s.sification of those definitions which must const.i.tute 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 Halicarna.s.sus cla.s.ses him with Herodotus and Demosthenes in the perfection of his style, which is characterized by great harmony and rhythm, as well as the variety of elegant figures. [Footnote: See Donaldson's quotations, _Hist. Lit. of Greece_, vol. ii. p. 257.]

[Sidenote: His doctrines.]

[Sidenote: The end of science is the contemplation of truth.]

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 was a Realist, that is, he maintained that every general term, or abstract idea, has a real and independent existence. Here he probably was indebted to Pythagoras, for Plato was a master of the whole realm of philosophical speculation; but his conception of _ideas_ is a great advance on the conception of _numbers_. He was taught by Socrates that beyond this world of sense, there was the world of eternal truth, and that there were certain principles concerning which there could 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 G.o.d is the supreme idea. To know G.o.d should be the great aim of life. We know him by the desire which like feels for like. The divinity within feels for 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 to the divine. Beauty is not revealed by harmonious outlines which appeal to the senses, but is _Truth_. It is divinity. Beauty, truth, love, these are G.o.d, the supreme desire of the soul to comprehend, and by the contemplation of which the mortal soul sustains itself, and by perpetual meditation becomes partic.i.p.ant in immortality.

The communion with G.o.d presupposes immortality. The search for the knowledge of G.o.d is the great end of life. Wisdom is the consecration of the soul to the search; and this 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 high excellence--the knowledge of G.o.d, the object of all rational inquiry. Hence the imperfection of all human knowledge. The supreme good is attainable; it is not attained. G.o.d is the immutable good, and justice the rule of the universe. "The vital principle of his philosophy is to show that true science is the knowledge of the good; is the eternal contemplation or 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." [Footnote: Ritter, _Hist, of Phil_., b. viii. p. 2, chap. i.] He was unable to find a transition from his world of ideas to that of sense, and his philosophy, vague and mystical, though severely logical, diverts the mind from the investigations of actual life--from that which is the object of experience.

[Sidenote: The object of Plato's inquiries.]

The writings of Plato have come down to us complete, and have been admired by all ages for their philosophical acuteness, as well as beauty of language. He was not the first to use the form of dialogue, but he handled it with greater mastery than any one who preceded him, or has come after him, and all with a view to bring his hearers to a consciousness of knowledge or ignorance. He regarded wisdom as the attribute of the G.o.dhead; that philosophy is the necessity of the intellectual man, and the greatest good to which he can attain. This wisdom presupposes, however, a communion with the divine. He regarded the soul as immortal and indestructible. He maintained that neither happiness nor virtue can consist in the attempt to satisfy our unbridled desires; that virtue is purely a matter of intelligence; that pa.s.sions disturb the moral economy.

[Sidenote: G.o.d the immutable good.]

"When we review the doctrines of Plato, it is impossible to deny," says. .h.i.tter, "that they are pervaded with a grand view of life and the universe. This is the n.o.ble thought which inspired him to say, that G.o.d 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. His merit lies chiefly in having advanced certain distinct and precise rules for the Socratic method, and in insisting, with a perfect consciousness of its importance, upon the law of science, that to be able to descend from the higher to the lower ideas by a principle of the reason, and reciprocally from the multiplicity of the lower to the higher, is indispensable to the perfect possession of any knowledge. He thus imparted to this method a more liberal character. 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 ma.s.s 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."

Plato is very much admired by the Germans, who look upon him as the incarnation of dialectical power; but it were to be hoped that, some day, these great metaphysicians may make a clearer exposition of his doctrines, and of his services to philosophy, than they have as yet done. To me, Ritter, Brandis, and all the great authorities, are obscure. But 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 surpa.s.sed; while his purity of life, and his lofty inquiries, and his belief in G.o.d 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 a criticism and an 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. He represents the philosophy which he so much admires as a contemplation of, and the tendency to, the absolute and eternal good. The good is enthroned by Plato in majesty supreme at the summit of the whole universe, and the sensible world is regarded as a development of supreme perfection in an inferior and transitory form. Nor are ideas abstractions, as some suppose, but archetypal conceptions of the divine mind itself--the eternal laws and reasons of things. The sensible world is regarded as an imperfect image of ideal perfection, yet the uncertainty of physical researches is candidly admitted. The discovery of theological and moral truth, is the great object even of the "_Timoeus_." Hence the physics of Plato have a theological character--are mathematical rather than experimental. The psychology represents the body as the prison of the soul, somewhat after the spirit of oriental theogonists, and the aim of virtue is to preserve the distinctness of both, and realize liberty in bonds. The doctrine of preexistence is maintained, as well as a future state. In the ethics, the perfection of the human soul--the perfection which it may attain--is distinctly unfolded, and also the unity of the great ideas of the beautiful, just, and good. The "_Phoedo_" enforces the supremacy of wisdom, and the "_Philebus_" the "_summum bonum_." _Love_ is the aspiration after a communion with perfection. The chief excellence of the philosophy which Plato taught, consists in the immutable basis a.s.signed to the principles of moral truth; the defects are a want of distinct apprehension of the claims of divine justice in consequence of human sin, and an indirect discouragement of active virtue.

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 B.C.

384, of wealthy parents, and early evinced an insatiable thirst for knowledge. When Plato returned from Sicily he joined his disciples, and was his pupil for seventeen years, at Athens. On the death of Plato, he went on his travels, and became the tutor of Alexander the Great, and B.C. 335, returned to Athens, after an absence of twelve years, and set up a school, and taught in the Lyceum. He taught while walking up and down the shady walks which surrounded it, from which he obtained the name of Peripatetic, which has clung to his name and philosophy. His school had a great celebrity, and from it proceeded ill.u.s.trious philosophers, statesmen, historians, and orators. He taught thirteen years, during which 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 presented him with eight hundred talents-- an enormous sum--for the collection of materials. He also wrote on ethics and politics, history and rhetoric; letters, poems, and speeches, three fourths of which are lost. He was one of the most voluminous writers of antiquity, and probably 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 great an influence. He was an oracle until the revival of learning.

[Sidenote: Genius of Aristotle.]

"Aristotle," says Hegel, "penetrated into the whole ma.s.s, and 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." [Footnote: Hagel is said to have comprehended Aristotle better than any modern writer, and the best work on his philosophy is by him.] 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.

"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." [Footnote: Adolph Stahr, Oldenburg.]

[Sidenote: Vast attainments of Aristotle.]

But there can be no doubt as to his marvelous power of systematization.

Collecting together all the results of ancient speculation, he so elaborated them into a coordinate system, that for two thousand years he reigned supreme in the schools. In a literary point of view, Plato was doubtless his superior, but Plato was a poet making philosophy divine and musical; but Aristotle's investigations spread over a far wider range. He wrote also on politics, natural history, and ethics, in so comprehensive and able manner, as to prove his claim to be one of the greatest intellects of antiquity, the most subtle and the most patient.

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 G.o.d, 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 the general prevalence of skepticism, arising from the unsatisfactory speculations respecting nature. He removed this skepticism by inventing a new method, and by withdrawing the mind from the contemplation of nature, to the study of man himself. He bade men to look inward.

[Sidenote: Ethics the great subject of inquiry with Plato.]

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 G.o.ds. He would contemplate truth as the great aim of life.

[Sidenote: Main inquiries of Aristotle had reference to physics and metaphysics.]

With Aristotle, ethics formed only one branch of his attention. His main inquiries were in reference to physics and metaphysics. He thus, by bringing these into the region or inquiry, paved the way for a new epoch of skepticism. [Footnote: Lewes, Ritter, Hegel, Maurice, Diogenes Laertius. See fine article in _Encyclopedia Britannica._ Schwegler, translated by Seelyn.]

It is impossible, within the proper limits of this chapter, to enter upon an a.n.a.lysis of the philosophy of either the three great lights of the ancient world, or to enumerate and describe their other writings. I merely wish to show what are considered to be the vital principles on which their systems were based, and the general spirit of their speculations. The student must examine these in the elaborate treatises of modern philosophers, and in the original works of Plato and Aristotle.

[Sidenote: Their characteristic inquiries.]

Both Plato and Aristotle taught that reason alone could form science; but 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. And he maintained that the individual things alone _existed_, and if individuals only exist, they can only be known by _sensation_. Sensation thus becomes the basis of knowledge. Plato made reason the basis of knowledge, but Aristotle made _experience_. Plato directed man to the contemplation of ideas; Aristotle, to the observations of Nature.

Instead of proceeding synthetically and dialectically like Plato, he pursues an a.n.a.lytic 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 commenced with him, since he maintained that experience furnishes the principles of every science; but, while his conception was just, there was not sufficient experience then acc.u.mulated from which to generalize with effect. He did not sufficiently verify his premises. His reasoning was correct upon the data given, as in the famous syllogism, "All black birds are crows; this bird is black; therefore this bird is a crow." The defect of the syllogism is not in the reasoning, but in the truth of the major premise, since all black birds are not crows. It is only a most extensive and exhaustive examination of the accuracy of a proposition which will warrant reasoning upon it. Aristotle reasoned without sufficient examination of the major premise of his syllogisms.

[Sidenote: Logic of Aristotle.]

Aristotle was the father of logic, and Hegel and Kant think there has been no improvement upon it since his day. And 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 the processes of thought. Induction and syllogism are the two great instruments of his 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, showing great ingenuity, and useful as a 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. We arrive at no new knowledge by the syllogism, since the major premise is more evident than the conclusion, and anterior to it. Thus he made speculation subordinate to logical distinctions, and his system, when carried out by the schoolmen, led to a spirit of useless quibbling.

Instead of interrogating Nature, as Bacon led the way, they interrogated their own minds, and no great discoveries were made. From a want of a proper knowledge of the conditions of scientific inquiry, the method of Aristotle became fruitless. [Footnote: Maurice, _Anc. Phil_. See Whewell, _Hist. Ind. Science_.]

Though Aristotle wrote in a methodical manner, yet there is 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.

[Sidenote: The Skeptics.]

Philosophy, as a great system of dialectics, as an a.n.a.lysis of the power and faculties of the mind, as a method to pursue inquiries, as an intellectual system merely, 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 skeptics, like Pyrrho, had only negative doctrines, and had a disdain of 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. Thus s.e.xtus attacked both induction and definitions. "If we do not know the thing we define," said he, "we do not comprehend it because of the definition, but we impose on it the definition because we know it; and if we are ignorant of the thing we would define, it is impossible to define it." Thus the skeptics 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, they 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 B.C. 342, contended that pleasure was happiness; that pleasure should not be sought for its own sake, but with a view of the happiness of life obtained by it. He taught that it 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 few wants. He sought to widen the domain of pleasure, and narrow that of pain, and regarded a pa.s.sionless state of life the highest. Nor did he dread death, which was deliverance from misery.

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 practical spirit of a philosopher, although very little of the earnest cravings of a religious man. He himself led a virtuous life, because it was wiser and better 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 skeptical and irreligious philosophy, the great principle of which was that whatever is pleasant should be the object of existence. [Footnote: the doctrines of the Epicureans are best set forth in Lucretius.]

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 if ethics are a part of the great system of Grecian philosophy, they are well worthy of attention. Some of the greatest men of antiquity are numbered among them--like Seneca and Marcus Aurelius. The philosophy they taught was morality, and this was eminently practical and also elevated.

[Sidenote: Zeno.]

The founder of this sect, Zeno, born rich, but reduced to poverty by misfortune, was a very remarkable man, and a very good one, and profoundly revered by the Athenians, who intrusted him with the keys of their citadel. The date of his birth is unknown, but he lived in a degenerate age, when skepticism and sensuality were eating out the life and vigor of Grecian society, when Greek civilization was rapidly pa.s.sing 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 Porch, which had once been the resort of the poets. He was chiefly absorbed with ethical questions, although he studied profoundly the systems of the old philosophers. He combated Plato's doctrine that virtue consists in contemplation, and of Epicurus, that it consisted in pleasure. Man, in his eyes, was made for active duties. He also sought to oppose skepticism, which was casting the funereal veil of doubt and uncertainty over every thing pertaining to the soul, and G.o.d, and the future life.

"The skeptics 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 he, taking a stand on common sense, fought for morality, as did Reid and Beattie, when they combated the skepticism of Hume.