Purpose of dialogue to qualify for a life of philosophical Search.

In these words of Sokrates we read a contrast between practice and theory — one of the most eloquent passages in the dialogues — wherein Plato throws overboard the ordinary concerns and purposes both of public and private life, admitting that true philosophers are unfit for them. The passage, while it teaches us caution in receiving his criticisms on the defects of actual statesmen and men of action, informs us at the same time that he regarded philosophy as the only true business of life — the single pursuit worthy to occupy a freeman.141 This throws light on the purpose of many of his dialogues. He intends to qualify the mind for a life of philosophical research, and with this view to bestow preliminary systematic training on the ratiocinative power. To announce at once his own positive conclusions with their reasons, (as I remarked before) is not his main purpose. A pupil who, having got all these by heart, supposed himself to have completed his course of philosophy, so that nothing farther remained to be done, would fall very short of the Platonic exigency. The life of the philosopher — as Plato here conceives it — is a perpetual search after truth, by dialectic debate and mutual cross-examination between two minds, aiding each other to disembroil that confusion and inconsistency which grows up naturally in the ordinary mind. For such a life a man becomes rather disqualified than prepared, by swallowing an early dose of authoritative dogmas and proofs dictated by his teacher. The two essential requisites for it are, that he should acquire a self-acting ratiocinative power, and an earnest, untiring, interest in the dialectic process. Both these aids Plato’s negative dialogues are well calculated to afford: and when we thus look at his purpose, we shall see clearly that it did not require the presentation of any positive result.

Difficulties of the Theætêtus are not solved in any other Dialogue.

The course of this dialogue — the Theætêtus — has been already described as an assemblage of successive perplexities without any solution. But what deserves farther notice is — That the perplexities, as they are not solved in this dialogue, so they are not solved in any other dialogue. The view taken by Schleiermacher and other critics — that Plato lays out the difficulties in one anterior dialogue, in order to furnish the solution in another posterior — is not borne out by the facts. In the Theætêtus, many objections are propounded against the doctrine, That Opinion is sometimes true, sometimes false. Sokrates shows that false opinion is an impossibility: either therefore all opinions are true, or no opinion is either true or false. If we turn to the Sophistês, we shall find this same question discussed by the Eleatic Stranger who conducts the debate. He there treats the doctrine — That false opinion is an impossibility and that no opinion could be false — as one which had long embarrassed himself, and which formed the favourite subterfuge of the impostors whom he calls Sophists. He then states that this doctrine of the Sophists was founded on the Parmenidean dictum — That Non-Ens was an impossible supposition. Refuting the dictum of Parmenides (by a course of reasoning which I shall examine elsewhere), he arrives at the conclusion — That Non-Ens exists in a certain fashion, as well as Ens: That false opinions are possible: That there may be false opinions as well as true. But what deserves most notice here, in illustration of Plato’s manner, is — that though the Sophistês142 is announced as a continuation of the Theætêtus (carried on by the same speakers, with the addition of the Eleate), yet the objections taken by Sokrates in the Theætêtus against the possibility of false opinion, are not even noticed in the Sophistês — much less removed. Other objections to it are propounded and dealt with: but not those objections which had arrested the march of Sokrates in the Theætêtus.143 Sokrates and Theætêtus hear the Eleatic Stranger discussing this same matter in the Sophistês, yet neither of them allude to those objections against his conclusion which had appeared to both of them irresistible in the preceding dialogue known as Theætêtus. Nor are the objections refuted in any other of the Platonic dialogues.

Plato considered that the search for Truth was the noblest occupation of life.

Such a string of objections never answered, and of difficulties without solution, may appear to many persons nugatory as well as tiresome. To Plato they did not appear so. At the time when most of his dialogues were composed, he considered that the Search after truth was at once the noblest occupation, and the highest pleasure, of life. Whoever has no sympathy with such a pursuit — whoever cares only for results, and finds the chase in itself fatiguing rather than attractive — is likely to take little interest in the Platonic dialogues. To repeat what I said in Chapter VIII. — Those who expect from Plato a coherent system in which affirmative dogmas are first to be laid down, with the evidence in their favour — next, the difficulties and objections against them enumerated — lastly, these difficulties solved — will be disappointed. Plato is, occasionally, abundant in his affirmations: he has also great negative fertility in starting objections: but the affirmative current does not come into conflict with the negative. His belief is enforced by rhetorical fervour, poetical illustration, and a vivid emotional fancy. These elements stand to him in the place of positive proof; and when his mind is full of them, the unsolved objections, which he himself had stated elsewhere, vanish out of sight. Towards the close of his life (as we shall see in the Treatise De Legibus), the love of dialectic, and the taste for enunciating difficulties even when he could not clear them up, died out within him. He becomes ultra-dogmatical, losing even the poetical richness and fervour which had once marked his affirmations, and substituting in their place a strict and compulsory orthodoxy.

Contrast between the philosopher and the practical statesman — between Knowledge and Opinion.

The contrast between the philosopher and the man engaged in active life — which is so emphatically set forth in the Theætêtus144 — falls in with the distinction between Knowledge and Opinion — The Infallible and the Fallible. It helps the purpose of the dialogue, to show what knowledge is not: and it presents the distinction between the two on the ethical and emotional side, upon which Plato laid great stress. The philosopher (or man of Knowledge, i.e. Knowledge viewed on its subjective side) stands opposed to the men of sensible perception and opinion, not merely in regard to intellect, but in regard to disposition, feeling, character, and appreciation of objects. He neither knows nor cares about particular things or particular persons: all his intellectual force, and all his emotional interests, are engaged in the contemplation of Universals or Real Entia, and of the great pervading cosmical forces. He despises the occupations of those around him, and the actualities of life, like the Platonic Sokrates in the Gorgias:145 assimilating himself as much as possible to the Gods; who have no other occupation (according to the Aristotelian146 Ethics), except that of contemplating and theorising. He pursues these objects not with a view to any ulterior result, but because the pursuit is in itself a life both of virtue and happiness; neither of which are to be found in the region of opinion. Intense interest in speculation is his prominent characteristic. To dwell amidst these contemplations is a self-sufficing life; even without any of the aptitudes or accomplishments admired by the practical men. If the philosopher meddles with their pursuits, he is not merely found incompetent, but also incurs general derision; because his incompetence becomes manifest even to the common-place citizens. But if they meddle with his speculations, they fail not less disgracefully; though their failure is not appreciated by the unphilosophical spectator.

The professors of Knowledge are thus divided by the strongest lines from the professors of Opinion. And opinion itself — The Fallible — is, in this dialogue, presented as an inexplicable puzzle. You talk about true and false opinions: but how can false opinions be possible? and if they are not possible, what is the meaning of true, as applied to opinions? Not only, therefore, opinion can never be screwed up to the dignity of knowledge — but the world of opinion itself defies philosophical scrutiny. It is a chaos in which there is neither true nor false; in perpetual oscillation (to use the phrase of the Republic) between Ens and Non-Ens.147

CHAPTER XXIX.

Persons and circumstances of the two dialogues.

These two dialogues are both of them announced by Plato as forming sequel to the Theætêtus. The beginning of the Sophistês fits on to the end of the Theætêtus: and the Politikus is even presented as a second part or continuation of the Sophistês.1 In all the three, the same interlocutors are partially maintained. Thus Sokrates, Theodôrus, and Theætêtus are present in all three: and Theætêtus makes the responses, not only in the dialogue which bears his name, but also in the Sophistês. Both in the Sophistês and Politikus, however, Sokrates himself descends from the part of principal speaker to that of listener: it is he, indeed, who by his question elicits the exposition, but he makes no comment either during the progress of it or at the close. In both the dialogues, the leading and expository function is confided to a new personage introduced by Theodôrus:— a stranger not named, but announced as coming from Elea — the friend and companion of Parmenides and Zeno. Perhaps (remarks Sokrates) your friend may, without your knowledge, be a God under human shape; as Homer tells us that the Gods often go about, in the company of virtuous men, to inspect the good and bad behaviour of mankind. Perhaps your friend may be a sort of cross-examining God, coming to test and expose our feebleness in argument. No (replies Theodôrus) that is not his character. He is less given to dispute than his companions. He is far from being a God, but he is a divine man: for I call all true philosophers divine.2

This Eleate performs the whole task of exposition, by putting questions to Theætêtus, in the Sophistês — to the younger Sokrates in the Politikus. Since the true Sokrates is merely listener in both dialogues, Plato provides for him an additional thread of connection with both; by remarking that the youthful Sokrates is his namesake, and that Theætêtus resembles him in flat nose and physiognomy.3

Relation of the two dialogues to the Theætêtus.

Though Plato himself plainly designates the Sophistês as an intended sequel to the Theætêtus, yet the method of the two is altogether different, and in a certain sense even opposite. In the Theætêtus, Sokrates extracts answers from the full and pregnant mind of that youthful respondent: he himself professes to teach nothing, but only to canvass every successive hypothesis elicited from his companion. But the Eleate is presented to us in the most imposing terms, as a thoroughly accomplished philosopher: coming with doctrines established in his mind,4 and already practised in the task of exposition which Sokrates entreats him to undertake. He is, from beginning to end, affirmative and dogmatical: and if he declines to proceed by continuous lecture, this is only because he is somewhat ashamed to appropriate all the talk to himself.5 He therefore prefers to accept Theætêtus as respondent. But Theætêtus is no longer pregnant, as in the preceding dialogue. He can do no more than give answers signifying assent and dissent, which merely serve to break and diversify the exposition. In fact, the dialogue in the Sophistês and Politikus is assimilated by Plato himself,6 not to that in the Theætêtus, but to that in the last half of the Parmenides; wherein Aristotelês the respondent answers little more than Ay or No, to leading questions from the interrogator.

Plato declares that his first purpose is to administer a lesson in logical method: the special question chosen, being subordinate to that purpose.

In noticing the circumlocutory character, and multiplied negative criticism, of the Theætêtus, without any ultimate profit realised in the form of positive result — I remarked, that Plato appreciated dialogues, not merely as the road to a conclusion, but for the mental discipline and suggestive influence of the tentative and verifying process. It was his purpose to create in his hearers a disposition to prosecute philosophical research of their own, and at the same time to strengthen their ability of doing so with effect. This remark is confirmed by the two dialogues now before us, wherein Plato defends himself against reproaches seemingly made to him at the time.7 “To what does all this tend? Why do you stray so widely from your professed topic? Could you not have reached this point by a shorter road?” He replies by distinctly proclaiming — That the process, with its improving influence on the mind, stands first in his thoughts — the direct conclusion of the enquiry, only second: That the special topic which he discusses, though in itself important, is nevertheless chosen principally with a view to its effect in communicating general method and dialectic aptitude: just as a schoolmaster, when he gives out to his pupils a word to be spelt, looks mainly, not to their exactness in spelling that particular word, but to their command of good spelling generally.8 To form inquisitive, testing minds, fond of philosophical debate as a pursuit, and looking at opinions on the negative as well as on the positive side, is the first object in most of Plato’s dialogues: to teach positive truth, is only a secondary object.

Method of logical Definition and Division.

Both the Sophistes and the Politikus are lessons and specimens of that process which the logical manuals recognise under the names — Definition and Division. What is a Sophist? What is a politician or statesman? What is a philosopher? In the first place — Are the three really distinct characters? for this may seem doubtful: since the true philosopher, in his visits of inspection from city to city, is constantly misconceived by an ignorant public, and confounded with the other two.9 The Eleate replies that the three are distinct. Then what is the characteristic function of each? How is he distinguished from other persons or other things? To what class or classes does each belong: and what is the specific character belonging to the class, so as to mark its place in the scheme descending by successive logical subdivision from the highest genus down to particulars? What other professions or occupations are there analogous to those of Sophist and Statesman, so as to afford an illustrative comparison? What is there in like manner capable of serving as illustrative contrast?

Sokrates tries the application of this method, first, upon a vulgar subject. To find the logical place and deduction of the Angler. Superior classes above him. Bisecting division.

Such are the problems which it is the direct purpose of the two dialogues before us to solve. But a large proportion of both is occupied by matters bearing only indirectly upon the solution. The process of logical subdivision, or the formation of classes in subordination to each other, can be exhibited just as plainly in application to an ordinary craft or profession, as to one of grave importance. The Eleate Stranger even affirms that the former case will be simpler, and will serve as explanatory introduction to the latter.10 He therefore selects the craft of an angler, for which to find a place in logical classification. Does not an angler belong to the general class — men of art or craft? He is not a mere artless, non-professional, private man. This being so, we must distribute the class Arts — Artists, into two subordinate classes: Artists who construct or put together some new substance or compound — Artists who construct nothing new, but are employed in getting, or keeping, or employing, substances already made. Thus the class Artists is bisected into Constructive — Acquisitive. The angler constructs nothing: he belongs to the acquisitive branch. We now bisect this latter branch. Acquirers either obtain by consent, or appropriate without consent. Now the angler is one of the last-mentioned class: which is again bisected into two sub-classes, according as the appropriation is by force or stratagem — Fighters and Hunters. The angler is a hunter: but many other persons are hunters also, from whom he must be distinguished. Hunters are therefore divided into, Those who hunt inanimate things (such as divers for sponges, &c.), and Those who hunt living things or animals, including of course the angler among them. The hunters of animals are distinguished into hunters of walking animals, and hunters of swimming animals. Of the swimming animals some are in air, others in water:11 hence we get two classes, Bird-Hunters and Fish-Hunters; to the last of whom the angler belongs. The fish-hunters (or fishermen) again are bisected into two classes, according as they employ nets, or striking instruments of one kind or another, such as tridents, &c. Of the striking fishermen there are two sorts: those who do their work at night by torch-light, and those who work by day. All these day-fishermen, including among them the angler, use instruments with hooks at the end. But we must still make one bisection more. Some of them employ tridents, with which they strike from above downwards at the fishes, upon any part of the body which may present itself: others use hooks, rods, and lines, which they contrive to attach to the jaws of the fish, and thereby draw him from below upward.12 This is the special characteristic of the angler. We have now a class comprehending the anglers alone, so that no farther sub-division is required. We have obtained not merely the name of the angler, but also the rational explanation of the function to which the name is attached.13

Such a lesson in logical classification was at that time both novel and instructive. No logical manuals then existed.

This is the first specimen which Plato gives of a systematic classification descending, by successive steps of bifurcation, through many subordinations of genera and species, each founded on a real and proclaimed distinction — and ending at last in an infima species. He repeats the like process in regard to the Sophist, the Statesman, and other professions to which he compares the one or the other: but it will suffice to have given one specimen of his method. If we transport ourselves back to his time, I think that such a view of the principles of classification implies a new and valuable turn of thought. There existed then no treatises on logic; no idea of logic as a scheme of mental procedure; no sciences out of which it was possible to abstract the conception of a regular method more or less diversified. On no subject was there any mass of facts or details collected, large enough to demand some regular system for the purpose of arranging and rendering them intelligible. Classification to a certain extent is of necessity involved, consciously or unconsciously, in the use of general terms. But the process itself had never been made a subject of distinct consciousness or reflection to any one (as far as our knowledge reaches), in the time of Plato. No one had yet looked at it as a process natural indeed to the human intellect, up to a certain point and in a loose manner, — but capable both of great extension and great improvement, and requiring especial study, with an end deliberately set before the mind, in order that it might be employed with advantage to regularise and render intelligible even common and well-known facts. To determine a series of descending classes, with class-names, each connoting some assignable characteristic — to distribute the whole of each class between two correlative sub-classes, to compare the different ways in which this could be done, and to select such membra condividentia as were most suitable for the purpose — this was in the time of Plato an important novelty. We know from Xenophon14 that Sokrates considered Dialectic to be founded, both etymologically and really, upon the distribution of particular things into genera or classes. But we find little or no intentional illustration of this process in any of the conversations of the Xenophontic Sokrates: and we are farther struck by the fact that Plato, in the two dialogues which we are here considering, assigns all the remarks on the process of classification, not to Sokrates himself, but to the nameless Eleatic Stranger.