(1) The Mosaic philosophy is accordingly divided into four parts, - into the historic, and that which is specially called the legislative, which two properly belong to an ethical treatise; and the third, that which, relates to sacrifice, which belongs to physical science; and the fourth, above all, the department of theology, "vision," which Plato predicates of the truly great mysteries. And this species Aristotle calls metaphysics. Dialectics, according to Plato, is, as he says in The Statesman, a science devoted to the discovery of the explanation of things. And it is to be acquired by the wise man, not for the sake of saying or doing aught of what we find among men (as the dialecticians, who occupy themselves in sophistry, do), but to be able to say and do, as far as possible, what is pleasing to God. But the true dialectic, being philosophy mixed with truth, by examining things, and testing forces and powers, gradually ascends in relation to the most excellent essence of all, and essays to go beyond to the God of the universe, professing not the knowledge of mortal affairs, but the science of things divine and heavenly; in accordance with which follows a suitable course of practice with respect to words and deeds, even in human affairs. Rightly, therefore, the Scripture, in its desire to make us such dialecticians, exhorts us: "Be ye skilful money-changers" rejecting some things, but retaining what is good. For this true dialectic is the science which analyses the objects of thought, and shows abstractly and by itself the individual substratum of existences, or the power of dividing things into genera, which descends to their most special properties, and presents each individual object to be contemplated simply such as it is.

(533) Dear Glaucon, I said, you will not be able to follow me here, though I would do my best, and you should behold not an image only but the absolute truth, according to my notion. Whether what I told you would or would not have been a reality I cannot venture to say; but you would have seen something like reality; of that I am confident. Doubtless, he replied. But I must also remind you, that the power of dialectic alone can reveal this, and only to one who is a disciple of the previous sciences. Of that assertion you may be as confident as of the last. And assuredly no one will argue that there is any other method of comprehending by any regular process all true existence or of ascertaining what each thing is in its own nature; for the arts in general are concerned with the desires or opinions of men, or are cultivated with a view to production and construction, or for the preservation of such productions and constructions; and as to the mathematical sciences which, as we were saying, have some apprehension of true being—geometry and the like—they only dream about being, but never can they behold the waking reality so long as they leave the hypotheses which they use unexamined, and are unable to give an account of them. For when a man knows not his own first principle, and when the conclusion and intermediate steps are also constructed out of he knows not what, how can he imagine that such a fabric of convention can ever become science? Impossible, he said. Then dialectic, and dialectic alone, goes directly to the first principle and is the only science which does away with hypotheses in order to make her ground secure; the eye of

(17) Logical discussion, then, of intellectual subjects, with selection and assent, is called Dialectics; which establishes, by demonstration, allegations respecting truth, and demolishes the doubts brought forward.

(2) We must lop, dig, bind, and perform the other operations. The pruning-knife, I should think, and the pick-axe, and the other agricultural implements, are necessary for the culture of the vine, so that it may produce eatable fruit. And as in husbandry, so also in medicine: he has learned to purpose, who has practised the various lessons, so as to be able to cultivate and to heal. So also here, I call him truly learned who brings everything to bear on the truth; so that, from geometry, and music, and grammar, and philosophy itself, culling what is useful, he guards the faith against assault. Now, as was said, the athlete is despised who is not furnished for the contest. For instance, too, we praise the experienced helmsman who "has seen the cities of many men," and the physician who has had large experience; thus also some describe the empiric. And he who brings everything to bear on a fight life, procuring examples from the Greeks and barbarians, this man is an experienced searcher after truth, and in reality a man of much counsel, like the touch-stone (that is, the Lydian), which is believed to possess the power of distinguishing the spurious from the genuine gold. And our much-knowing gnostic can distinguish sophistry from philosophy, the art of decoration from gymnastics, cookery from physic, and rhetoric from dialectics, and the other sects which are according to the barbarian philosophy, from the truth itself. And how necessary is it for him who desires to be partaker of the power of God, to treat of intellectual subjects by philosophising! And how serviceable is it to distinguish expressions which are ambiguous, and which in the Testaments are used synonymously! For the Lord, at the time of His temptation, skilfully matched the devil by an ambiguous expression. And I do not yet, in this connection, see how in the world the inventor of philosophy and dialectics, as some suppose, is seduced through being deceived by the form of speech which consists in ambiguity. And if the prophets and apostles knew not the arts by which the exercises of philosophy are exhibited, yet the mind of the prophetic and instructive spirit, uttered secretly, because all have not an intelligent ear, demands skilful modes of teaching in order to clear exposition. For the prophets and disciples of the Spirit knew infallibly their mind. For they knew it by faith, in a way which others could not easily, as the Spirit has said. But it is not possible for those who have not learned to receive it thus. "Write," it is said, "the commandments doubly, in counsel and knowledge, that thou mayest answer the words of truth to them who send unto thee." What, then, is the knowledge of answering? or what that of asking? It is dialectics. What then? Is not speaking our business, and does not action proceed from the Word? For if we act not for the Word, we shall act against reason. But a rational work is accomplished through God. "And nothing," it is said, "was made without Him" - the Word of God.

(16) The studies of philosophy, therefore, and philosophy itself, are aids in treating of the truth. For instance, the cloak was once a fleece; then it was shorn, and became warp and woof; and then it was woven. Accordingly the soul must be prepared and variously exercised, if it would become in the highest degree good. For there is the scientific and the practical element in truth; and the latter flows from the speculative; and there is need of great practice, and exercise, and experience.

(531) regard the skilled mathematician as a dialectician? Assuredly not, he said; I have hardly ever known a mathematician who was capable of reasoning. But do you imagine that men who are unable to give and take a reason will have the knowledge which we require of them? Neither can this be supposed. And so, Glaucon, I said, we have at last arrived at the hymn of dialectic. This is that strain which is of the intellect only, but which the faculty of sight will nevertheless be found to imitate; for sight, as you may remember, was imagined by us after a while to behold the real animals and stars, and last of all the sun himself. And so with dialectic; when a person starts on the discovery of the absolute by the light of reason only, and without any assistance of sense, and perseveres until by pure intelligence he arrives at the perception of the absolute good, he at last finds himself at the end of the intellectual world, as in the case of sight at the end of the visible. Exactly, he said. Then this is the progress which you call dialectic? True. But the release of the prisoners from chains, and their translation from the shadows to the images and to the light, and the ascent from the underground den to the sun, while in his presence they are vainly trying to look on animals and plants and the light of the sun, but are able to perceive

(2) Although at one time philosophy justified the Greeks, not conducting them to that entire righteousness to which it is ascertained to cooperate, as the first and second flight of steps help you in your ascent to the upper room, and the grammarian helps the philosopher. Not as if by its abstraction, the perfect Word would be rendered incomplete, or truth perish; since also sight, and hearing, and the voice contribute to truth, but it is the mind which is the appropriate faculty for knowing it. But of those things which co-operate, some contribute a greater amount of power; some, a less. Perspicuity accordingly aids in the communication of truth, and logic in preventing us from falling under the heresies by which we are assailed. But the teaching, which is according to the Saviour, is complete in itself and without defect, being "the power and wisdom of God;" and the Hellenic philosophy does not, by its approach, make the truth more powerful; but rendering powerless the assault of sophistry against it, and frustrating the treacherous plots laid against the truth, is said to be the proper "fence and wall of the vineyard." And the truth which is according to faith is as necessary for life as bread; while the preparatory discipline is like sauce and sweetmeats. "At the end of the dinner, the dessert is pleasant," according to the Theban Pindar. And the Scripture has expressly said, "The innocent will become wiser by understanding, and the wise will receive knowledge." "And he that speaketh of himself," saith the Lord, "seeketh his own glory; but He that seeketh His glory that sent Him is true, and there is no unrighteousness in Him." On the other hand, therefore, he who appropriates what belongs to the barbarians, and vaunts it is his own, does wrong, increasing his own glory, and falsifying the truth. It is such an one that is by Scripture called a "thief." It is therefore said, "Son, be not a liar; for falsehood leads to theft."

(1) As we have long ago pointed out, what we propose as our subject is not the discipline which obtains in each sect, but that which is really philosophy, strictly systematic Wisdom, which furnishes acquaintance with the things which pertain to life. And we define Wisdom to be certain knowledge, being a sure and irrefragable apprehension of things divine and human, comprehending the present, past, and future, which the Lord hath taught us, both by His advent and by the prophets. And it is irrefragable by reason, inasmuch as it has been communicated. And so it is wholly true according to [God's] intention, as being known through means of the Son. And in one aspect it is eternal, and in another it becomes useful in time. Partly it is one and the same, partly many and indifferent - partly without any movement of passion, partly with passionate desire - partly perfect, partly incomplete.

(534) Yes, he said, you and I together will make it. Dialectic, then, as you will agree, is the coping-stone of the sciences, and is set over them; no other science can be placed higher—the nature of knowledge can no further go? I agree, he said. But to whom we are to assign these studies, and in what way they are to be assigned, are questions which remain to be considered. Yes, clearly. You remember, I said, how the rulers were chosen before? Certainly, he said. The same natures must still be chosen, and the preference again given to the surest and the bravest, and, if possible, to the fairest; and, having noble and generous tempers, they should also have the natural gifts which will facilitate their education. And what are these? Such gifts as keenness and ready powers of acquisition; for the mind more often faints from the severity of study than from the severity of gymnastics: the toil is more entirely the mind’s own, and is not shared with the body. Very true, he replied.

(32) Philosophy would lead all men into the broad, calm vistas of truth, for the world of philosophy is a land of peace where those finer qualities pent up within each human soul are given opportunity for expression. Here men are taught the wonders of the blades of grass; each stick and stone is endowed with speech and tells the secret of its being. All life, bathed in the radiance of understanding, becomes a wonderful and beautiful reality. From the four corners of creation swells a mighty anthem of rejoicing, for here in the light of philosophy is revealed the purpose of existence; the wisdom and goodness permeating the Whole become evident to even man's imperfect intellect. Here the yearning heart of humanity finds that companionship which draws forth from the innermost recesses of the soul that great store of good which lies there like precious metal in some deep hidden vein.

(1) As many men drawing down the ship, cannot be called many causes, but one cause consisting of many; - for each individual by himself is not the cause of the ship being drawn, but along with the rest; - so also philosophy, being the search for truth, contributes to the comprehension of truth; not as being the cause of comprehension, but a cause along with other things, and co-operator; perhaps also a joint cause. And as the several virtues are causes of the happiness of one individual; and as both the sun, and the fire, and the bath, and clothing are of one getting warm: so while truth is one, many things contribute to its investigation. But its discovery is by the Son. If then we consider, virtue is, in power, one. But it is the case, that when exhibited in some things, it is called prudence, in others temperance, and in others manliness or righteousness. By the same analogy, while truth is one, in geometry there is the truth of geometry; in music, that of music; and in the right philosophy, there will be Hellenic truth. But that is the only authentic truth, unassailable, in which we are instructed by the Son of God. In the same way we say, that the drachma being one and the same, when given to the shipmaster, is called the fare; to the tax-gatherer, tax; to the landlord, rent; to the teacher, fees; to the seller, an earnest. And each, whether it be virtue or truth, called by the same name, is the cause of its own peculiar effect alone; and from the blending of them arises a happy life. For we are not made happy by names alone, when we say that a good life is happiness, and that the man who is adorned in his soul with virtue is happy. But if philosophy contributes remotely to the discovery of truth, by reaching, by diverse essays, after the knowledge which touches close on the truth, the knowledge possessed by us, it aids him who aims at grasping it, in accordance with the Word, to apprehend knowledge. But the Hellenic truth is distinct from that held by us (although it has got the same name), both in respect of extent of knowledge, certainly of demonstration, divine power, and the like. For we are taught of God, being instructed in the truly "sacred letters" by the Son of God. Whence those, to whom we refer, influence souls not in the way we do, but by different teaching. And if, for the sake of those who are fond of fault-finding, we must draw a distinction, by saying that philosophy is a concurrent and cooperating cause of true apprehension, being the search for truth, then we shall avow it to be a preparatory training for the enlightened man (tou gnwstikou); not assigning as the cause that which is but the joint-cause; nor as the upholding cause, what is merely co-operative; nor giving to philosophy the place of a sine qua non. Since almost all of us, without training in arts and sciences, and the Hellenic philosophy, and some even without learning at all, through the influence of a philosophy divine and barbarous, and by power, have through faith received the word concerning God, trained by self-operating wisdom. But that which acts in conjunction with something else, being of itself incapable of operating by itself, we describe as co-operating and concausing, and say that it becomes a cause only in virtue of its being a joint-cause, and receives the name of cause only in respect of its concurring with something else, but that it cannot by itself produce the right effect.