79 Plato, Phædrus, pp. 273-274.

Question about Writing — As an Art, for the purpose of instruction, it can do little — Reasons why. Writing may remind the reader of what he already knows.

We have now determined what goes to constitute genuine art, in speaking or in writing. But how far is writing, even when art is applied to it, capable of producing real and permanent effect? or indeed of having art applied to it at all? Sokrates answers himself — Only to a small degree. Writing will impart amusement and satisfaction for the moment: it will remind the reader of something which he knew before, if he really did know. But in respect to any thing which he did not know before, it will neither teach nor persuade him: it may produce in him an impression or fancy that he is wiser than he was before, but such impression is illusory, and at best only transient. Writing is like painting — one and the same to all readers, whether young or old, well or ill informed. It cannot adapt itself to the different state of mind of different persons, as we have declared that every finished speaker ought to do. It cannot answer questions, supply deficiencies, reply to objections, rectify misunderstanding. It is defenceless against all assailants. It supersedes and enfeebles the memory, implanting only a false persuasion of knowledge without the reality.80

80 Plato, Phædrus, p. 275 D-E. ταὐτὸν δὲ καὶ οἱ λόγοι (οἱ γεγραμμένοι)· δόξαις μὲν ἂν ὥς τι φρονοῦντας αὐτοὺς λέγειν ἐὰν δέ τι ἕρῃ τῶν λεγομένων βουλόμενος μαθεῖν, ἕν τι σημαίνει μόνον ταὐτὸν ἀεί. Ὅταν δὲ ἅπαξ γραφῇ, κυλινδεῖται μὲν πανταχοῦ πᾶς λόγος ὁμοίως παρὰ τοῖς ἐπαΐουσιν, ὡς δ’ αὐτῶς παρ’ οἷς οὐδὲν προσήκει, καὶ οὐκ ἐπίσταται λέγειν οἷς δεῖ γε καὶ μή.

Neither written words, nor continuous speech, will produce any serious effect in teaching. Dialectic and cross-examination are necessary.

Any writer therefore, in prose or verse — Homer, Solon, or Lysias — who imagines that he can by a ready-made composition, however carefully turned,81 if simply heard or read without cross-examination or oral comment, produce any serious and permanent effect in persuading or teaching, beyond a temporary gratification — falls into a disgraceful error. If he intends to accomplish any thing serious, he must be competent to originate spoken discourse more effective than the written. The written word is but a mere phantom or ghost of the spoken word: which latter is the only legitimate offspring of the teacher, springing fresh and living out of his mind, and engraving itself profoundly on the mind of the hearer.82 The speaker must know, with discriminative comprehension, and in logical subdivision, both the matter on which he discourses, and the minds of the particular hearers to whom he addresses himself. He will thus be able to adapt the order, the distribution, the manner of presenting his subject, to the apprehension of the particular hearers and the exigencies of the particular moment. He will submit to cross-examination,83 remove difficulties, and furnish all additional explanations which the case requires. By this process he will not indeed produce that immediate, though flashy and evanescent, impression of suddenly acquired knowledge, which arises from the perusal of what is written. He will sow seed which for a long time appears buried under ground; but which, after such interval, springs up and ripens into complete and lasting fruit.84 By repeated dialectic debate, he will both familiarise to his own mind and propagate in his fellow-dialogists, full knowledge; together with all the manifold reasonings bearing on the subject, and with the power also of turning it on many different sides, of repelling objections and clearing up obscurities. It is not from writing, but from dialectic debate, artistically diversified and adequately prolonged, that full and deep teaching proceeds; prolific in its own nature, communicable indefinitely from every new disciple to others, and forming a source of intelligence and happiness to all.85

81 Plato, Phædrus, pp. 277-278. ὡς οἱ ῥαψῳδούμενοι (λόγοι) ἄνευ ἀνακρίσεως καὶ διδαχῆς πειθοῦς ἕνεκα ἐλέχθησαν, &c.

82 Plato, Phædrus, p. 276 A. ἄλλον ὁρῶμεν λόγον τούτου ἀδελφὸν γνήσιον τῷ τρόπῳ τε γίγνεται, καὶ ὅσῳ ἀμείνων καὶ δυνατώτερος τούτου φύεται;… Ὅς μετ’ ἐπιστήμης γράφεται ἐν τῇ τοῦ μανθάνοντος ψυχῇ, δυνατὸς μὲν ἀμῦναι ἑαυτῷ, ἐπιστήμων δὲ λέγειν τε καὶ σιγᾷν πρὸς οὓς δεῖ. Τὸν τοῦ εἰδότος λόγον λέγεις ζῶντα καὶ ἔμψυχον, οὗ ὁ γεγραμμένος εἴδωλον ἄν τι λέγοιτο δικαίως, &c. 278 A.

83 Plato, Phædrus, p. 278 C. εἰ μὲν εἰδὼς ᾗ τἀληθὲς ἔχει συνέθηκε ταῦτα (τὰ συγγράμματα) καὶ ἔχων βοηθεῖν, εἰς ἔλεγχον ἰὼν περὶ ὧν ἔγραψε, καὶ λέγων αὐτὸς δυνατὸς τὰ γεγραμμένα φαῦλα ἀποδεῖξαι, &c.

84 Plato, Phædrus, p. 276 A.

85 Plato, Phædrus, pp. 276-277.

This blending of philosophy with rhetoric, which pervades the criticisms on Lysias in the Phædrus, is farther illustrated by the praise bestowed upon Isokrates in contrast with Lysias. Isokrates occupied that which Plato in Euthydêmus calls “the border country between philosophy and politics”. Many critics declare (and I think with probable reason86) that Isokrates is the person intended (without being named) in the passage just cited from the Euthydêmus. In the Phædrus, Isokrates is described as the intimate friend of Sokrates, still young; and is pronounced already superior in every way to Lysias — likely to become superior in future to all the rhetors that have ever flourished — and destined probably to arrive even at the divine mysteries of philosophy.87

86 See above, vol. ii. ch. xxi. p. 227.

87 Plato, Phædrus, p. 279 A.

When we consider that the Phædrus was pretty sure to bring upon Plato a good deal of enmity — since it attacked, by name, both Lysias, a resident at Athens of great influence and ability, and several other contemporary rhetors more or less celebrated — we can understand how Plato became disposed to lighten this amount of enmity by a compliment paid to Isokrates. This latter rhetor, a few years older than Plato, was the son of opulent parents at Athens, and received a good education; but when his family became impoverished by the disasters at the close of the Peloponnesian war, he established himself as a teacher of rhetoric at Chios: after some time, however, he returned to Athens, and followed the same profession there. He engaged himself also, like Lysias, in composing discourses for pleaders before the dikastery88 and for speakers in the assembly; by which practice he acquired both fortune and reputation. Later in life, he relinquished these harangues destined for real persons on real occasions, and confined himself to the composition of discourses (intended, not for contentious debate, but for the pleasure and instruction of hearers) on general questions — social, political, and philosophical: at the same time receiving numerous pupils from different cities of Greece. Through such change, he came into a sort of middle position between the rhetoric of Lysias and the dialectic of Plato: insomuch that the latter, at the time when he composed the Phædrus, had satisfaction in contrasting him favourably with Lysias, and in prophesying that he would make yet greater progress towards philosophy. But at the time when Plato composed the Euthydêmus, his feeling was different.89 In the Phædrus, Isokrates is compared with Lysias and other rhetors, and in that comparison Plato presents him as greatly superior: in the Euthydêmus, he is compared with philosophers as well as with rhetors, and is even announced as disparaging philosophy generally: Plato then declares him to be a presumptuous half-bred, and extols against him even the very philosopher whom he himself had just been caricaturing. To apply a Platonic simile, the most beautiful ape is ugly compared with man — the most beautiful man is an ape compared with the Gods:90 the same intermediate position between rhetoric and philosophy is assigned by Plato to Isokrates.

88 Dion. Hal. De Isocrate Judicium, p. 576. δεσμὰς πάνυ πολλὰς δικανικῶν λόγων περιφέρεσθαί φησιν ὑπὸ τῶν βιβλιοπωλῶν Ἀριστοτέλης, &c.

Plutarch, Vit. x. Oratt. pp. 837-838.

The Athenian Polykrates had been forced, by loss of property, to quit Athens and undertake the work of a Sophist in Cyprus. Isokrates expresses much sympathy for him: it was a misfortune like what had happened to himself (Orat. xi. Busiris 1). Compare De Permutation. Or. xv. s. 172.

The assertion made by Isokrates — that he did not compose political and judicial orations, to be spoken by individuals for real causes and public discussions — may be true comparatively, and with reference to a certain period of his life. But it is only to be received subject to much reserve and qualification. Even out of the twenty-one orations of Isokrates which we possess, the last five are composed to be spoken by pleaders before the dikastery. They are such discourses as the logographers, Lysias among the rest, were called upon to furnish, and paid for furnishing.

89 Plato, Euthydêm. p. 306. I am inclined to agree with Ueberweg in thinking that the Euthydêmus is later than the Phædrus. Ueberweg, Aechtheit der Platon. Schriften, pp. 256-259-265.

90 Plato, Hipp. Major, p. 289.

From the pen of Isokrates also, we find various passages apparently directed against the viri Socratici including Plato (though without his name): depreciating,91 as idle and worthless, new political theories, analytical discussions on the principles of ethics, and dialectic subtleties; maintaining that the word philosophy was erroneously interpreted and defined by many contemporaries, in a sense too much withdrawn from practical results: and affirming that his own teaching was calculated to impart genuine philosophy. During the last half of Plato’s life, his school and that of Isokrates were the most celebrated among all that existed at Athens. There was competition between them, gradually kindling into rivalry. Such rivalry became vehement during the last ten years of Plato’s life, when his scholar Aristotle, then an aspiring young man of twenty-five, proclaimed a very contemptuous opinion of Isokrates, and commenced a new school of rhetoric in opposition to him.92 Kephisodôrus, a pupil of Isokrates, retaliated; publishing against Aristotle, as well as against Plato, an acrimonious work which was still read some centuries afterwards. Theopompus, another eminent pupil of Isokrates, commented unfavourably upon Plato in his writings: and other writers who did the same may probably have belonged to the Isokratean school.93

91 Isokrates, Orat. x. 1 (Hel. Enc.); Orat. v. (Philipp.) 12; Or. xiii. (Sophist.) 9-24; Orat. xv. (Permut.) sect. 285-290. φιλοσοφίαν μὲν οὖν οὐκ οἶμαι δεῖν προσαγορεύειν τὴν μηδὲν ἐν τῷ παρόντι μήτε πρὸς τὸ λέγειν μήτε πρὸς τὸ πράττειν ὥφελοῦσαν — τὴν καλουμένην ὑπό τινων φιλοσοφίαν οὐκ εἶναι φημί, &c.

92 Cicero, De Oratore, iii. 35, 141; Orator. 19, 62; Numenius, ap. Euseb. Præp. Evang. xiv. 6, 9. See Stahr, Aristotelia, i. p. 63 seq., ii. p. 44 seq.

Schroeder’s Quæstiones Isocrateæ (Utrecht, 1859), and Spengel’s work, Isokrates und Plato, are instructive in regard to these two contemporary luminaries of the intellectual world at Athens. But, unfortunately, we can make out few ascertainable facts. When I read the Oration De Permut., Or. xv. (composed by Isokrates about fifteen years before his own death, and about five years before the death of Plato, near 353 B.C.), I am impressed with the belief that many of his complaints about unfriendly and bitter criticism refer to the Platonic School of that day, Aristotle being one of its members. See sections 48-90-276, and seq. He certainly means the Sokratic men, and Plato as the most celebrated of them, when he talks of οἱ περὶ τὰς ἐρωτήσεις καὶ ἀποκρίσεις, οὓς ἀντιλογικοὺς καλοῦσιν — οἱ περὶ τὰς ἔριδας σπουδάζοντες — those who are powerful in contentious dialectic, and at the same time cultivate geometry and astronomy, which others call ἀδολεσχία and μικρολογία (280) — those who exhorted hearers to virtue about which others knew nothing, and about which they themselves were in dispute. When he complains of the περιττολόγιαι of the ancient Sophists, Empedokles, Ion, Parmenides, Melissus, &c., we cannot but suppose that he had in his mind the Timæus of Plato also, though he avoids mention of the name.

93 Athenæus, iii. p. 122, ii. 60; Dionys. Hal. Epistol. ad Cn. Pomp. p. 757.

The Dialectician and Cross-Examiner is the only man who can really teach. If the writer can do this, he is more than a writer.

This is the true philosopher (continues Sokrates) — the man who alone is competent to teach truth about the just, good, and honourable.94 He who merely writes, must not delude himself with the belief that upon these important topics his composition can impart any clear or lasting instruction. To mistake fancy for reality hereupon, is equally disgraceful, whether the mistake be made by few or by many persons. If indeed the writer can explain to others orally the matters written — if he can answer all questions, solve difficulties, and supply the deficiencies, of each several reader — in that case he is something far more and better than a writer, and ought to be called a philosopher. But if he can do no more than write, he is no philosopher: he is only a poet, or nomographer, or logographer.95

94 Plato, Phædrus, p. 277 D-E.

95 Plato, Phædrus, pp. 278-279.

Lysias is only a logographer: Isokrates promises to become a philosopher.

In this latter class stands Lysias. I expect (concludes Sokrates) something better from Isokrates, who gives promise of aspiring one day to genuine philosophy.96

 

96 Respecting the manner in which Plato speaks of Isokrates in the Phædrus, see what I have already observed upon the Euthydêmus, vol. ii. ch. xxi. pp. 227-229.

 


 

Date of the Phædrus — not an early dialogue.

I have already observed that I dissent from the hypothesis of Schleiermacher, Ast, and others, who regard the Phædrus either as positively the earliest, or at least among the earliest, of the Platonic dialogues, composed several years before the death of Sokrates. I agree with Hermann, Stallbaum, and those other critics, who refer it to a much later period of Plato’s life: though I see no sufficient evidence to determine more exactly either its date or its place in the chronological series of dialogues. The views opened in the second half of the dialogue, on the theory of rhetoric and on the efficacy of written compositions as a means of instruction, are very interesting and remarkable.

Criticism given by Plato on the three discourses — His theory of Rhetoric is more Platonic than Sokratic.

The written discourse of Lysias (presented to us as one greatly admired at the time by his friends, Phædrus among them) is contrasted first with a pleading on the same subject (though not directed towards the attainment of the same end) by Sokrates (supposed to be improvised on the occasion); next with a second pleading of Sokrates directly opposed to the former, and intended as a recantation. These three discourses are criticised from the rhetorical point of view,97 and are made the handle for introducing to us a theory of rhetoric. The second discourse of Sokrates, far from being Sokratic in tenor, is the most exuberant effusion of mingled philosophy, poetry, and mystic theology, that ever emanated from Plato.

97 Plato, Phædrus, p. 235 A.

His theory postulates, in the Rhetor, knowledge already assured — it assumes that all the doubts have been already removed.

The theory of rhetoric too is far more Platonic than Sokratic. The peculiar vein of Sokrates is that of confessed ignorance, ardour in enquiry, and testing cross-examination of all who answer his questions. But in the Phædrus we find Plato (under the name of Sokrates) assuming, as the basis of his theory, that an expositor shall be found who knows what is really and truly just and unjust, good and evil, honourable and dishonourable — distinct from, and independent of, the established beliefs on these subjects, traditional among his neighbours and fellow-citizens:98 assuming (to express the same thing in other words) that all the doubts and difficulties, suggested by the Sokratic cross-examination, have been already considered, elucidated, and removed.

98 Plato, Phædrus, pp. 259 E, 260 E, and 262 B.

The Expositor, with knowledge and logical process, teaches minds unoccupied and willing to learn.

The expositor, master of such perfect knowledge, must farther be master (so Plato tells us) of the arts of logical definition and division: that is, he must be able to gather up many separate fragmentary particulars into one general notion, clearly identified and embodied in a definition: and he must be farther able to subdivide such a general notion into its constituent specific notions, each marked by some distinct characteristic feature.99 This is the only way to follow out truth in a manner clear and consistent with itself: and truth is equally honourable in matters small or great.100

99 Plato, Phædrus, p. 266.

100 Plato, Phædrus, p. 261 A.

That truth upon matters small and contemptible deserves to be sought out and proved as much as upon matters great and sublime, is a doctrine affirmed in the Sophistês, Politikus, Parmenidês: Sophist. pp. 218 E, 227 A; Politik. 266 D; Parmenid. 130 E.

Thus far we are in dialectic: logical exposition proceeding by way of classifying and declassifying: in which it is assumed that the expositor will find minds unoccupied and unprejudiced, ready to welcome the truth when he lays it before them. But there are many topics on which men’s minds are, in the common and natural course of things, both pre-occupied and dissentient with each other. This is especially the case with Justice, Goodness, the Honourable, &c.101 It is one of the first requisites for the expositor to be able to discriminate this class of topics, where error and discordance grow up naturally among those whom he addresses. It is here that men are liable to be deceived, and require to be undeceived — contradict each other, and argue on opposite sides: such disputes belong to the province of Rhetoric.

101 Plato, Phædrus, p. 263 A.

The Rhetor does not teach, but persuades persons with minds pre-occupied — guiding them methodically from error to truth.

The Rhetor is one who does not teach (according to the logical process previously described), but persuades; guiding the mind by discourse to or from various opinions or sentiments.102 Now if this is to be done by art and methodically — that is, upon principle or system explicable and defensible — it pre-supposes (according to Plato) a knowledge of truth, and can only be performed by the logical expositor. For when men are deceived, it is only because they mistake what is like truth for truth itself: when they are undeceived, it is because they are made to perceive that what they believe to be truth is only an apparent likeness thereof. Such resemblances are strong or faint, differing by many gradations. Now no one can detect, or bring into account, or compare, these shades of resemblance, except he who knows the truth to which they all ultimately refer. It is through the slight differences that deception is operated. To deceive a man, you must carry him gradually away from the truth by transitional stages, each resembling that which immediately precedes, though the last in the series will hardly at all resemble the first: to undeceive him (or to avoid being deceived yourself), you must conduct him back by the counter-process from error to truth, by a series of transitional resemblances tending in that direction. You cannot do this like an artist (on system and by pre-determination), unless you know what the truth is.103 By anyone who does not know, the process will be performed without art, or at haphazard.

102 Plato, Phædrus, p. 261 A. ἡ ῥητορικὴ τέχνη ψυχαγωγία τις διὰ λόγων, &c.

103 Plato, Phædrus, pp. 262 A-D, 273 D.

He must then classify the minds to be persuaded, and the means of persuasion or varieties of discourse. He must know how to fit on the one to the other in each particular case.

The Rhetor — being assumed as already knowing the truth — if he wishes to make persuasion an art, must proceed in the following manner:— He must distribute the multiplicity of individual minds into distinct classes, each marked by its characteristic features of differences, emotional and intellectual. He must also distribute the manifold modes of discourse into distinct classes, each marked in like manner. Each of these modes of discourse is well adapted to persuade some classes of mind — badly adapted to persuade other classes: for such adaptation or non-adaptation there exists a rational necessity,104 which the Rhetor must examine and ascertain, informing himself which modes of discourse are adapted to each different class of mind. Having mastered this general question, he must, whenever he is about to speak, be able to distinguish, by rapid perception,105 to which class of minds the hearer or hearers whom he is addressing belong: and accordingly, which mode of discourse is adapted to their particular case. Moreover, he must also seize, in the case before him, the seasonable moment and the appropriate limit, for the use of each mode of discourse. Unless the Rhetor is capable of fulfilling all these exigencies, without failing in any one point, his Rhetoric is not entitled to be called an Art. He requires, in order to be an artist in persuading the mind, as great an assemblage of varied capacities as Hippokrates declares to be necessary for a physician, the artist for curing or preserving the body.106

104 Plato, Phædrus, pp. 270 E, 271 A-D. Τρίτον δὲ δὴ διαταξάμενος τὰ λόγων τε καὶ ψυχῆς γένη, καὶ τὰ τούτων παθήματα, δίεισι τὰς αἰτίας, προσαρμόττων ἕκαστον ἑκάστῳ, καὶ διδάσκων οἵα οὖσα ὑφ’ οἵων λόγων δι’ ἣν αἰτίαν ἐξ ἀνάγκης ἡ μὲν πείθεται, ἡ δὲ ἀπειθεῖ.

105 Plato, Phædrus, p. 271 D-E. δεῖ δὴ ταῦτα ἱκανῶς νοήσαντα, μετὰ ταῦτα θεώμενον αὐτὰ ἐν ταῖς πράξεσιν ὄντα τε καὶ πραττόμενα, ὀξέως τῇ αἰσθήσει δύνασθαι ἐπακολουθεῖν, ἢ μηδὲ εἰδέναι πω πλέον αὐτῶν ὧν τότε ἤκουε λόγων ξυνών.

106 Plato, Phædrus, p. 270 C.

Plato’s Idéal of the Rhetorical Art — involves in part incompatible conditions — the Wise man or philosopher will never be listened to by the public.

The total, thus summed up by Plato, of what is necessary to constitute an Art of Rhetoric, is striking and comprehensive. It is indeed an idéal, not merely unattainable by reason of its magnitude, but also including impracticable conditions. He begins by postulating a perfectly wise man, who knows all truth on the most important social subjects; on which his country-men hold erroneous beliefs, just as sincerely as he holds his true beliefs. But Plato has already told us, in the Gorgias, that such a person will not be listened to: that in order to address auditors with effect, the rhetor must be in genuine harmony of belief and character with them, not dissenting from them either for the better or the worse: nay, that the true philosopher (so we read in one of the most impressive portions of the Republic) not only has no chance of guiding the public mind, but incurs public obloquy, and may think himself fortunate if he escapes persecution.107 The dissenter will never be allowed to be the guide of a body of orthodox believers; and is even likely enough, unless he be prudent, to become their victim. He may be permitted to lecture or discuss, in the gardens of the Academy, with a few chosen friends, and to write eloquent dialogues: but if he embodies his views in motions before the public assembly, he will find only strenuous opposition, or something worse. This view, which is powerfully set forth by Sokrates both in the Gorgias and Republic, is founded on a just appreciation of human societies: and it is moreover the basis of the Sokratic procedure — That the first step to be taken is to disabuse men’s minds of their false persuasion of knowledge — to make them conscious of ignorance — and thus to open their minds for the reception of truth. But if this be the fact, we must set aside as impracticable the postulate advanced by Sokrates here in the Phædrus — of a perfectly wise man as the employer of rhetorical artifices. Moreover I do not agree with what Sokrates is here made to lay down as the philosophy of Error:— that it derives its power of misleading from resemblance to truth. This is the case to a certain extent: but it is very incomplete as an account of the generating causes of error.

107 Plato, Gorg. p. 513 B, see supra, ch. xxiv.; Republic, vi. pp. 495-496.

The other part of the Platonic Idéal is grand but unattainable — breadth of psychological data and classified modes of discourse.

But the other portion of Plato’s sum total of what is necessary to an Art of Rhetoric, is not open to the same objection. It involves no incompatible conditions: and we can say nothing against it, except that it requires a breadth and logical command of scientific data, far greater than there is the smallest chance of attaining. That Art is an assemblage of processes, directed to a definite end, and prescribed by rules which themselves rest upon scientific data — we find first announced in the works of Plato.108 A vast amount of scientific research, both inductive and deductive, is here assumed as an indispensable foundation — and even as a portion — of what he calls the Art of Rhetoric: first, a science of psychology, complete both in its principles and details: next, an exhaustive catalogue and classification of the various modes of operative speech, with their respective impression upon each different class of minds. So prodigious a measure of scientific requirement has never yet been filled up: of course, therefore, no one has ever put together a body of precepts commensurate with it. Aristotle, following partially the large conceptions of his master, has given a comprehensive view of many among the theoretical postulates of Rhetoric; and has partially enumerated the varieties both of persuadable auditors, and of persuasive means available to the speaker for guiding them. Cicero, Dionysius of Halikarnassus, Quintilian, have furnished valuable contributions towards this last category of data, but not much towards the first: being all of them defective in breadth of psychological theory. Nor has Plato himself done anything to work out his conception in detail or to provide suitable rules for it. We read it only as an impressive sketch — a grand but unattainable idéal — “qualem nequeo monstrare et sentio tantum”.

108 I repeat the citation from the Phædrus, one of the most striking passages in Plato, p. 271 D.

ἔπειδὴ λόγου δύναμις τυγχάνει ψυχαγωγία οὖσα, τὸν μέλλοντα ῥητορικὸν ἔσεσθαι ἀνάγκη εἰδέναι ψυχὴ ὅσα εἴδη ἔχει. ἔστιν οὖν τόσα καὶ τόσα, καὶ τοῖα καὶ τοῖα· ὅθεν οἱ μὲν τοιοίδε, οἱ δὲ τοιοίδε γίγνονται. τούτων δὲ δὴ διῃρημένων, λόγων αὖ τόσα καὶ τόσα ἔστιν εἴδη, τοιόνδε ἕκαστον. οἱ μὲν οὖν τοιοίδε ὑπὸ τῶν τοιῶνδε λογων διὰ τήνδε τὴν αἰτίαν ἐς τὰ τοιάδε εὐπειθεῖς, οἱ δὲ τοιοίδε διὰ τάδε δυσπειθεῖς, &c. Comp. p. 261 A.

The relation of Art to Science is thus perspicuously stated by Mr. John Stuart Mill, in the concluding chapter of his System of Logic, Ratiocinative and Inductive (Book vi. ch. xii. § 2):

“The relation in which rules of Art stand to doctrines of Science may be thus characterised. The Art proposes to itself an end to be attained, defines the end, and hands it over to the Science. The Science receives it, considers it as a phenomenon or effect to be studied, and having investigated its causes and conditions, sends it back to Art with a theorem of the combinations of circumstances by which it could be produced. Art then examines these combinations of circumstances, and according as any of them are or are not in human power, pronounces the end attainable or not. The only one of the premisses, therefore, which Art supplies, is the original major premiss, which asserts that the attainment of the given end is desirable. Science then lends to Art the proposition (obtained by a series of inductions or of deductions) that the performance of certain actions will attain the end. From these premisses Art concludes that the performance of these actions is desirable; and finding it also practicable, converts the theorem into a rule or precept.”

Plato’s ideal grandeur compared with the rhetorical teachers — Usefulness of these teachers for the wants of an accomplished man.

Indeed it seems that Plato himself regarded it as unattainable — and as only worth aiming at for the purpose of pleasing the Gods, not with any view to practical benefit, arising from either speech or action among mankind.109 This is a point to be considered, when we compare his views on Rhetoric with those of Lysias and the other rhetors, whom he here judges unfavourably and even contemptuously. The work of speech and action among mankind, which Plato sets aside as unworthy of attention, was the express object of solicitude to Lysias, Isokrates, and rhetors generally: that which they practised efficaciously themselves, and which they desired to assist, cultivate, and improve in others: that which Perikles, in his funeral oration preserved by Thucydides, represents as the pride of the Athenian people collectively110 — combination of full freedom of preliminary contentious debate, with energy in executing the resolution which might be ultimately adopted. These rhetors, by the example of their composed speeches as well as by their teaching, did much to impart to young men the power of expressing themselves with fluency and effect before auditors, either in the assembly or in the dikastery: as Sokrates here fully admits.111 Towards this purpose it was useful to analyse the constituent parts of a discourse, and to give an appropriate name to each part. Accordingly, all the rhetorical teachers (Quintilian included) continued such analysis, though differing more or less in their way of performing it, until the extinction of Pagan civilisation. Young men were taught to learn by heart regular discourses,112 — to compose the like for themselves — to understand the difference between such as were well or ill composed — and to acquire a command of oratorical means for moving or convincing the hearer. All this instruction had a practical value: though Plato, both here and elsewhere, treats it as worthless. A citizen who stood mute and embarrassed, unable to argue a case with some propriety before an audience, felt himself helpless and defective in one of the characteristic privileges of a Greek and a freeman: while one who could perform the process well, acquired much esteem and influence.113 The Platonic Sokrates in the Gorgias consoles the speechless men by saying — What does this signify, provided you are just and virtuous? Such consolation failed to satisfy: as it would fail to satisfy the sick, the lame, or the blind.