STRANGER: When long speeches are answered by long speeches, and there is public discussion about the just and unjust, that is forensic controversy.
THEAETETUS: Yes.
STRANGER: And there is a private sort of controversy, which is cut up into questions and answers, and this is commonly called disputation?
THEAETETUS: Yes, that is the name.
STRANGER: And of disputation, that sort which is only a discussion about contracts, and is carried on at random, and without rules of art, is recognized by the reasoning faculty to be a distinct cla.s.s, but has. .h.i.therto had no distinctive name, and does not deserve to receive one from us.
THEAETETUS: No; for the different sorts of it are too minute and heterogeneous.
STRANGER: But that which proceeds by rules of art to dispute about justice and injustice in their own nature, and about things in general, we have been accustomed to call argumentation (Eristic)?
THEAETETUS: Certainly.
STRANGER: And of argumentation, one sort wastes money, and the other makes money.
THEAETETUS: Very true.
STRANGER: Suppose we try and give to each of these two cla.s.ses a name.
THEAETETUS: Let us do so.
STRANGER: I should say that the habit which leads a man to neglect his own affairs for the pleasure of conversation, of which the style is far from being agreeable to the majority of his hearers, may be fairly termed loquacity: such is my opinion.
THEAETETUS: That is the common name for it.
STRANGER: But now who the other is, who makes money out of private disputation, it is your turn to say.
THEAETETUS: There is only one true answer: he is the wonderful Sophist, of whom we are in pursuit, and who reappears again for the fourth time.
STRANGER: Yes, and with a fresh pedigree, for he is the money-making species of the Eristic, disputatious, controversial, pugnacious, combative, acquisitive family, as the argument has already proven.
THEAETETUS: Certainly.
STRANGER: How true was the observation that he was a many-sided animal, and not to be caught with one hand, as they say!
THEAETETUS: Then you must catch him with two.
STRANGER: Yes, we must, if we can. And therefore let us try another track in our pursuit of him: You are aware that there are certain menial occupations which have names among servants?
THEAETETUS: Yes, there are many such; which of them do you mean?
STRANGER: I mean such as sifting, straining, winnowing, threshing.
THEAETETUS: Certainly.
STRANGER: And besides these there are a great many more, such as carding, spinning, adjusting the warp and the woof; and thousands of similar expressions are used in the arts.
THEAETETUS: Of what are they to be patterns, and what are we going to do with them all?
STRANGER: I think that in all of these there is implied a notion of division.
THEAETETUS: Yes.
STRANGER: Then if, as I was saying, there is one art which includes all of them, ought not that art to have one name?
THEAETETUS: And what is the name of the art?
STRANGER: The art of discerning or discriminating.
THEAETETUS: Very good.
STRANGER: Think whether you cannot divide this.
THEAETETUS: I should have to think a long while.
STRANGER: In all the previously named processes either like has been separated from like or the better from the worse.
THEAETETUS: I see now what you mean.
STRANGER: There is no name for the first kind of separation; of the second, which throws away the worse and preserves the better, I do know a name.
THEAETETUS: What is it?
STRANGER: Every discernment or discrimination of that kind, as I have observed, is called a purification.
THEAETETUS: Yes, that is the usual expression.
STRANGER: And any one may see that purification is of two kinds.
THEAETETUS: Perhaps so, if he were allowed time to think; but I do not see at this moment.
STRANGER: There are many purifications of bodies which may with propriety be comprehended under a single name.
THEAETETUS: What are they, and what is their name?
STRANGER: There is the purification of living bodies in their inward and in their outward parts, of which the former is duly effected by medicine and gymnastic, the latter by the not very dignified art of the bath-man; and there is the purification of inanimate substances--to this the arts of fulling and of furbishing in general attend in a number of minute particulars, having a variety of names which are thought ridiculous.
THEAETETUS: Very true.
STRANGER: There can be no doubt that they are thought ridiculous, Theaetetus; but then the dialectical art never considers whether the benefit to be derived from the purge is greater or less than that to be derived from the sponge, and has not more interest in the one than in the other; her endeavour is to know what is and is not kindred in all arts, with a view to the acquisition of intelligence; and having this in view, she honours them all alike, and when she makes comparisons, she counts one of them not a whit more ridiculous than another; nor does she esteem him who adduces as his example of hunting, the general"s art, at all more decorous than another who cites that of the vermin-destroyer, but only as the greater pretender of the two. And as to your question concerning the name which was to comprehend all these arts of purification, whether of animate or inanimate bodies, the art of dialectic is in no wise particular about fine words, if she may be only allowed to have a general name for all other purifications, binding them up together and separating them off from the purification of the soul or intellect. For this is the purification at which she wants to arrive, and this we should understand to be her aim.
THEAETETUS: Yes, I understand; and I agree that there are two sorts of purification, and that one of them is concerned with the soul, and that there is another which is concerned with the body.
STRANGER: Excellent; and now listen to what I am going to say, and try to divide further the first of the two.
THEAETETUS: Whatever line of division you suggest, I will endeavour to a.s.sist you.