Hence, Aristotle remarks (_Met_. A. 6), Plato found in the ideas the originative or formative Cause of things, that which made them what they were or could be called,--their _Essence_; in the 'Great and Small' he found the opposite principle or _Matter_ (Raw Material) of things.

In this way the ant.i.thesis of Mind and Matter, whether on the great scale in creation or on the small in rational perception, is not an ant.i.thesis of unrelated opposition. Each is correlative of the other, so to speak as the male and the female; the one is generative, formative, active, positive; the other is capable of being impregnated, receptive, pa.s.sive, negative; but neither can realise itself apart from the other.

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This relation of 'Being' with that which is 'Other than Being' is Creation, wherein we can {168} conceive of the world as coming to be, yet not in [261] Time. And in the same way Plato speaks of a third form, besides the Idea and that which receives it, namely, 'Formless s.p.a.ce, the mother of all things.' As Kant might have formulated it, Time and s.p.a.ce are not prior to creation, they are forms under which creation becomes thinkable.

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The 'Other' or Negative element, Plato more or less vaguely connected with the evil that is in the world. This evil we can never expect to perish utterly from the world; it must ever be here as the ant.i.thesis of the good. But with the G.o.ds it dwells not; here in this mortal nature, and in this region of mingling, it must of necessity still be found. The wise man will therefore seek to die to the evil, and while yet in this world of mortality, to think immortal things, and so as far as may be flee from the evil. Thereby shall he liken himself to the divine. For it is a likening to the divine to be just and holy and true.

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This, then, is the _summum bonum_, the end of life. For as the excellence or end of any organ or instrument consists in that perfection of its parts, whereby each separately and the whole together work well towards the fulfilling of that which it is designed to accomplish, so the excellence of man must consist in a perfect ordering of all his parts to the perfect working of his whole organism as a {169} [276] rational being. The faculties of man are three: the Desire of the body, the Pa.s.sion of the heart, the Thought of the soul; the perfect working of all three, Temperance, Courage, Wisdom, and consequently the perfect working of the whole man, is Righteousness.

From this springs that ordered tranquillity which is at once true happiness and perfect virtue.

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Yet since individual men are not self-sufficient, but have separate capacities, and a need of union for mutual help and comfort, the perfect realisation of this virtue can only be in a perfect civic [278]

community. And corresponding with the three parts of the man there will be three orders in the community: the Workers and Traders, the Soldiers, and the Ruling or Guardian cla.s.s. When all these perform their proper functions in perfect harmony, then is the perfection of the whole realised, in Civic Excellence or Justice.

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To this end a careful civic education is necessary, _first_, because to _know_ what is for the general good is difficult, for we have to learn not only in general but in detail that even the individual good can be secured only through the general; and _second_, because few, if any, are capable of seeking the general good, even if they know it, without the guidance of discipline and the restraints of law. Thus, with a view to its own perfection, and the good of all {170} its members, Education is the chief work of the State.

It will be remembered (see foregoing page) that in Plato's division of the soul of man there are three faculties, Desire, Pa.s.sion, Reason; in the division of the soul's perfection three corresponding virtues, Temperance, Courage, Wisdom; and in the division of the state three corresponding orders, Traders, Soldiers, Guardians. So in Education there are three stages. First, _Music_ (including all manner of artistic and refining influences), whose function it is so to attemper the desires of the heart that all animalism and sensualism may be eliminated, and only the love and longing for that which is lovely and of good report may remain. Second, _Gymnastic_, whose function it is through ordered labour and suffering so to subdue and rationalise the pa.s.sionate part of the soul, that it may become the willing and obedient servant of that which is just and true. And third, _Mathematics_, by which the rational element of the soul may be trained to realise itself, being weaned, by the ordered apprehension of the 'diamond net' of laws which underlie all the phenomena of nature, away from the mere surface appearances of things, the accidental, individual, momentary,--to the deep-seated realities, which are necessary, universal, eternal.

And just as there was a perfectness of the soul {171} transcending all particular virtues, whether of Temperance or Courage or Wisdom, namely, that absolute Rightness or Righteousness which gathered them all into itself, so at the end of these three stages of education there is a higher mood of thought, wherein the soul, purified, chastened, enlightened, in communing with itself through _Dialectic_ (the Socratic art of questioning transfigured) communes also with the Divine, and in thinking out its own deepest thoughts, thinks out the thoughts of the great Creator Himself, becomes one with Him, finds its final realisation through absorption into Him, and in His light sees light.

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CHAPTER XVIII

ARISTOTLE

_An unruly pupil--The philosopher's library--The predominance of Aristotle--Relation to Plato--The highest philosophy--Ideas and things--The true realism_

Plato before his death bequeathed his Academy to his nephew Speusippus, who continued its president for eight years; and on his death the office pa.s.sed to Xenocrates, who held it for twenty-five years. From him it pa.s.sed in succession to Polemo, Crates, Crantor, and others.

Plato was thus the founder of a school or sect of teachers who busied themselves with commenting, expanding, modifying here and there the doctrines of the master. Little of their works beyond the names has been preserved, and indeed we can hardly regret the loss. These men no doubt did much to popularise the thoughts of their master, and in this way largely influenced the later development of philosophy; but they had nothing substantial to add, and so the stern pruning-hook of time has cut them off from remembrance.

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Aristotle was the son of a Greek physician, member of the colony of Stagira in Thrace. His father, Nicomachus by name, was a man of such {173} eminence in his profession as to hold the post of physician to Amyntas, king of Macedonia, father of Philip the subverter of Greek freedom. Not only was his father an expert physician, he was also a student of natural history, and wrote several works on the subject. We shall find that the fresh element which Aristotle brought to the Academic philosophy was in a very great measure just that minute attention to details and keen apprehension of vital phenomena which we may consider he inherited from his father. He was born 384 B.C., and on the death of his father, in his eighteenth year, he came to Athens, and became a student of philosophy under Plato, whose pupil he continued to be for twenty years,--indeed till the death of the master.

That he, undoubtedly a far greater man than Speusippus or Xenocrates, should not have been nominated to the succession has been variously explained; he is said to have been lacking in respect and grat.i.tude to the master; Plato is said to have remarked of him that he needed the curb as much as Xenocrates needed the spur. The facts really need no explanation. The original genius is never sufficiently subordinate and amenable to discipline. He is apt to be critical, to startle his easy-going companions with new and seemingly heterodox views, he is the 'ugly duckling' whom all the virtuous and commonplace brood must cackle {174} at. The Academy, when its great master died, was no place for Aristotle. He retired to Atarneus, a city of Mysia opposite to Lesbos, where a friend named Hermias was tyrant, and there he married Hermias'

niece. After staying at Atarneus some three years he was invited by Philip, now king of Macedon, to undertake the instruction of his son Alexander, the future conqueror, who was then thirteen years old. He remained with Alexander for eight years, though of course he could hardly be regarded as Alexander's tutor during all that time, since Alexander at a very early age was called to take a part in public affairs. However a strong friendship was formed between the philosopher and the young prince, and in after years Alexander loaded his former master with benefits. Even while on his march of conquest through Asia he did not forget him, but sent him from every country through which he pa.s.sed specimens which might help him in his projected History of Animals, as well as an enormous sum of money to aid him in his investigations.

After the death of Philip, Aristotle returned to Athens, and opened a school of philosophy on his own account in the Lyceum. Here some authorities tell us he lectured to his pupils while he paced up and down before them; hence the epithet applied to the school, the _Peripatetics_. Probably, however, the name is derived from the 'Peripati' or covered {175} walks in the neighbourhood of that temple in which he taught. He devoted his mornings to lectures of a more philosophical and technical character; to these only the abler and more advanced students were admitted. In the afternoons he lectured on subjects of a more popular kind--rhetoric, the art of politics, etc.--to larger audiences. Corresponding with this division, he also was in the habit of cla.s.sifying his writings as Acroatic or technical, and Exoteric or popular. He acc.u.mulated a large library and museum, to which he contributed an astonishing number of works of his own, on every conceivable branch of knowledge.

The after history of Aristotle's library, including the MSS. of his own works, is interesting and even romantic. Aristotle's successor in the school was Theophrastus, who added to the library bequeathed him by Aristotle many works of his own, and others purchased by him.

Theophrastus bequeathed the entire library to Neleus, his friend and pupil, who, on leaving Athens to reside at Scepsis in the Troad, took the library with him. There it remained for nearly two hundred years in possession of the Neleus family, who kept the collection hidden in a cellar for fear it should be seized to increase the royal library of Pergamus. In such a situation the works suffered much harm from worms and damp, till at last (_circa_ 100 B.C.) they were brought out {176} and sold to one Apellicon, a rich gentleman resident in Athens, himself a member of the Peripatetic school. In 86 B.C. Sulla, the Roman dictator, besieged and captured Athens, and among other prizes conveyed the library of Apellicon to Rome, and thus many of the most important works of Aristotle for the first time were made known to the Roman and Alexandrian schools. It is a curious circ.u.mstance that the philosopher whose influence was destined to be paramount for more than a thousand years in the Christian era, was thus deprived by accident of his legitimate importance in the centuries immediately following his own.

But his temporary and accidental eclipse was amply compensated in the effect upon the civilised world which he subsequently exercised. So all-embracing, so systematic, so absolutely complete did his philosophy appear, that he seemed to after generations to have left nothing more to discover. He at once attained a supremacy which lasted for some two thousand years, not only over the Greek-speaking world, but over every form of the civilisation of that long period, Greek, Roman, Syrian, Arabic, from the Euphrates to the Atlantic, from Africa to Britain.

His authority was accepted equally by the learned doctors of Moorish Cordova and the Fathers of the Church; to know Aristotle was to have all {177} knowledge; not to know him was to be a boor; to deny him was to be a heretic.

His style has nothing of the grace of Plato; he illuminates his works with no myths or allegories; his manner is dry, sententious, familiar, without the slightest attempt at ornament. There are occasional touches of caustic humour, but nothing of emotion, still less of rhapsody. His strength lies in the vast architectonic genius by which he correlates every domain of the knowable in a single scheme, and in the extraordinary faculty for ill.u.s.trative detail with which he fills the scheme in every part. He knows, and can shrewdly criticise every thinker and writer who has preceded him; he cla.s.sifies them as he cla.s.sifies the mental faculties, the parts of logical speech, the parts of sophistry, the parts of rhetoric, the parts of animals, the parts of the soul, the parts of the state; he defines, distinguishes, combines, cla.s.sifies, with the same sureness and minuteness of method in them all. He can start from a general conception, expand it into its parts, separate these again by distinguishing details till he brings the matter down to its lowest possible terms, or _infimae species_. Or he can start from these, find a.n.a.logies among them const.i.tuting more general species, and so in ascending scale travel surely up to a general conception, or _summum genus_.

In his general conception of philosophy he was {178} to a large extent in agreement with Plato; but he endeavoured to attain to a more technical precision; he sought to systematise into greater completeness; he pared off everything which he considered merely metaphorical or fanciful, and therefore non-essential. The operations of nature, the phenomena of life, were used in a much fuller and more definite way to ill.u.s.trate or even formulate the theory; but in its main ideas Aristotle's philosophy is Plato's philosophy. The one clothed it in poetry, the other in formulae; the one had a more entrancing vision, the other a clearer and more exact apprehension; but there is no essential divergence.

Aristotle's account of the origin or foundation of [300] philosophy is as follows (_Met_. A. 2): "Wonder is and always has been the first incentive to philosophy. At first men wondered at what puzzled them near at hand, then by gradual advance they came to notice and wonder at things still greater, as at the phases of the moon, the eclipses of sun and moon, the wonders of the stars, and the origin of the universe.

Now he who is puzzled and in a maze regards himself as a know-nothing; wherefore the philosopher is apt to be fond of wondrous tales or myths.

And inasmuch as it was a consciousness of ignorance that drove men to philosophy, it is for the correction of this ignorance, and not for any material utility, that the pursuit of knowledge exists. Indeed it is, {179} as a rule, only when all other wants are well supplied that, by way of ease and recreation, men turn to this inquiry. And thus, since no satisfaction beyond itself is sought by philosophy, we speak of it as we speak of the freeman. We call that man free whose existence is for himself and not for another; so also philosophy is of all the sciences the only one that is free, for it alone exists for itself.

"Moreover, this philosophy, which is the investigation of the first causes of things, is the most truly educative among the sciences. For instructors are persons who show us the causes of things. And knowledge for the sake of knowledge belongs most properly to that inquiry which deals with what is most truly a matter of knowledge. For he who is seeking knowledge for its own sake will choose to have that knowledge which most truly deserves the name, the knowledge, namely, of what most truly appertains to knowledge. Now the things that most truly appertain to knowledge are the first causes; for in virtue of one's possession of these, and by deduction from these, all else comes to be known; we do not come to know them through what is inferior to them and underlying them... . The wise man ought therefore to know not only those things which are the outcome and product of first causes, he must be possessed of the truth as to the first causes themselves. And wisdom indeed is just this {180} thoughtful science, a science of what is highest, not truncated of its head."

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"To the man, therefore, who has in fullest measure this knowledge of universals, all knowledge must lie to hand; for in a way he knows all that underlies them. Yet in a sense these universals are what men find hardest to apprehend, because they stand at the furthest extremity from the perceptions of sense."

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"Yet if anything exist which is eternal, immovable, freed from gross matter, the contemplative science alone can apprehend this. Physical science certainly cannot, for physics is of that which is ever in flux; nor can mathematical science apprehend it; we must look to a mode of science prior to and higher than both. The objects of physics are neither unchangeable nor free from matter; the objects of mathematics are indeed unchangeable, but we can hardly say they are free from matter; they have certainly relations with matter. But the first and highest science has to do with that which is unmoved and apart from matter; its function is with the eternal first causes of things. There are therefore three modes of theoretical inquiry: the science of physics, the science of mathematics, the science of G.o.d. For it is clear that if the divine is anywhere, it must be in that form of existence I have spoken of (_i.e._ in first causes)... . If, therefore, there be {181} any form of existence immovable, this we must regard as prior, and the philosophy of this we must consider the first philosophy, universal for the same reason that it is first. It deals with existence as such, inquiring what it is and what are its attributes as pure existence."

This is somewhat more technical than the language of Plato, but if we compare it with what was said above (p. 142) we shall find an essential ident.i.ty. Yet Aristotle frequently impugns Plato's doctrine of ideas, sometimes on the lines already [322] taken by Plato himself (above, p.

158), sometimes in other ways. Thus (_Met_. Z. 15, 16) he says: "That which is _one_ cannot be in many places at one time, but that which is common or general is in many places at one time. Hence it follows that no universal exists apart from the individual things. But those who hold the doctrine of ideas, on one side are right, viz. in maintaining their separate existence, if they are to be substances or existences at all. On the other side they are wrong, because by the idea or form which they maintain to be separate they mean the one attribute predicable of many things. The reason why they do this is because they cannot indicate what these supposed imperishable essences are, apart from the individual substances which are the objects of perception.

The result is that they simply represent them under the same forms as {182} those of the perishable objects of sensation which are familiar to our senses, with the addition of a phrase--_i.e._ they say 'man as such,' 'horse as such,' or 'the absolute man,' 'the absolute horse.'"

Aristotle here makes a point against Plato and his school, inasmuch as, starting from the a.s.sumption that of the world of sense there could be no knowledge, no apprehension fixed or certain, and setting over against this a world of general forms which were fixed and certain, they had nothing with which to fill this second supposed world except the data of sense as found in individuals. Plato's mistake was in confusing the mere 'this,' which is the conceived starting-point of any sensation, but which, like a mathematical point, has nothing which can be said about it, with individual objects as they exist and are known in all the manifold and, in fact, infinite relations of reality. The bare subject 'this' presents at the one extreme the same emptiness, the same mere possibility of knowledge, which is presented at the other by the bare predicate 'is.' But Plato, having an objection to the former, as representing to him the merely physical and therefore the pa.s.sing and unreal, clothes it for the nonce in the various attributes which are ordinarily a.s.sociated with it when we say, 'this man,' 'this horse,' only to strip them off successively as data of sensation, and so at last get, by an illusory process of {183} abstraction and generalisation, to the ultimate generality of being, which is the mere 'is' of bare predication converted into a supposed eternal substance.

Aristotle was as convinced as Plato that there must be some fixed and immovable object or reality corresponding to true and certain knowledge, but with his scientific instincts he was not content to have it left in a condition of emptiness, attractive enough to the more emotional and imaginative Plato. And hence we have elsewhere quite as strong and definite statements as those quoted above about universals [316] (p. 180), to the effect that existence is in the fullest and most real sense to be predicated of _individual_ things, and that only in a secondary sense can existence be predicated of universals, in virtue of their being found in individual things. Moreover, among universals the _species_, he maintains, has more of existence in it than the genus, because it is nearer to the individual or primary existence. For if you predicate of an individual thing of what species it is, you supply a statement more full of information and more closely connected with the thing than if you predicate to what genus it belongs; for example, if asked, "What is this?" and you answer, "A man," you give more information than if you say, "A living creature."

How did Aristotle reconcile these two points of {184} view, the one, in which he conceives thought as starting from first causes, the most universal objects of knowledge, and descending to particulars; the other, in which thought starts from the individual objects, and predicates of them by apprehension of their properties? The ant.i.thesis is no accidental one; on the contrary, it is the governing idea of his Logic, with its ascending process or Induction, and its descending process or Syllogism. Was thought a mere process in an unmeaning circle, the 'upward and downward way' of Plato?

As to this we may answer first that while formally Aristotle displays much the same 'dualism' or unreconciled separation of the 'thing' and the 'idea' as Plato, his practical sense and his scientific instincts led him to occupy himself largely not with either the empty 'thing' or the equally empty 'idea,' but with the true _individuals_, which are at the same time the true universals, namely, real objects as known, having, so far as they are known, certain forms or categories under which you can cla.s.s them, having, so far as they are not yet fully known, a certain raw material for further inquiry through observation.

In this way Thought and Matter, instead of being in eternal and irreconcilable antagonism as the Real and the Unreal, become parts of the same reality, the first summing up the knowledge of things already attained, the second symbolising the infinite {185} [317] possibilities of further ascertainment. And thus the word 'Matter' is applied by Aristotle to the highest genus, as the relatively indefinite compared with the more fully defined species included under it; it is also applied by him to the individual object, in so far as that object contains qualities not yet fully brought into predication.

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And second, we observe that Aristotle introduced a new conception which to his view established a _vital relation_ between the universal and the individual. This conception he formulated in the correlatives, _Potentiality_ and _Actuality_. With these he closely connected the idea of _Final Cause_. The three to Aristotle const.i.tuted a single reality; they are organically correlative. In a living creature we find a number of members or organs all closely interdependent and mutually conditioning each other. Each has its separate function, yet none of them can perform its particular function well unless all the others are performing theirs well, and the effect of the right performance of function by each is to enable the others also to perform theirs. The total result of all these mutually related functions is _Life_; this is their End or Final Cause, which does not exist apart from them, but is const.i.tuted at every moment by them. This Life is at the same time the condition on which alone each and every one of the functions const.i.tuting it can be performed. Thus {186} life in an organism is at once the end and the middle and the beginning; it is the cause final, the cause formal, the cause efficient. Life then is an _Entelechy_, as Aristotle calls it, by which he means the realisation in unity of the total activities exhibited in the members of the living organism.

In such an existence every part is at once a potentiality and an actuality, and so also is the whole. We can begin anywhere and travel out from that point to the whole; we can take the whole and find in it all the parts.

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