- Source
- Platonis Opera, Tomus I: Tetralogia I-II. Burnet, John, 1863-1928, editor. Oxford: Clarendon Press, 1905.
- Translation
- AI-generated (gemini-3.5-flash) — machine translation; may contain errors
- Languages
- 日本語 · English · 简体中文 · 한국어
- CTS URN
- urn:cts:greekLit:tlg0059.tlg006.humanitext-grc2:145-146
- Generated
- Humanitext Reader · reader.humanitext.ai · 2026-10-27
Socrates establishes that Theodorus is not a painter but highly learned in various sciences, and raises the question 'What is knowledge?' to Theaetetus, leading him to try defining it.
ΣΩ. νῦν δέ γʼ, οἶμαι, εἴ τι μέλει ἡμῖν τῆς τῶν προσώπων ὁμοιότητος, σκεπτέον εἰ γραφικὸς ὢν λέγει ἢ οὔ. ΘΕΑΙ. δοκεῖ μοι. ΣΩ. ἦ οὖν ζωγραφικὸς Θεόδωρος; ΘΕΑΙ. οὔχ, ὅσον γέ με εἰδέναι.1 ΣΩ. ἆρʼ οὐδὲ γεωμετρικός; ΘΕΑΙ. πάντως δήπου, ὦ Σώκρατες. ΣΩ. ἦ καὶ ἀστρονομικὸς καὶ λογιστικός τε καὶ μουσικὸς καὶ ὅσα παιδείας ἔχεται; ΘΕΑΙ. ἔμοιγε δοκεῖ. ΣΩ. εἰ μὲν ἄρα ἡμᾶς τοῦ σώματός τι2 ὁμοίους φησὶν εἶναι ἐπαινῶν πῃ ἢ ψέγων, οὐ πάνυ αὐτῷ ἄξιον τὸν νοῦν προσέχειν. ΘΕΑΙ. ἴσως οὔ. ΣΩ. τί δʼ εἰ ποτέρου τὴν ψυχὴν ἐπαινοῖ πρὸς ἀρετήν τε καὶ σοφίαν; ἆρʼ οὐκ ἄξιον τῷ μὲν ἀκούσαντι προθυμεῖσθαι ἀνασκέψασθαι τὸν ἐπαινεθέντα, τῷ δὲ προθύμως ἑαυτὸν ἐπιδεικνύναι; ΘΕΑΙ. πάνυ μὲν οὖν, ὦ Σώκρατες. ΣΩ. ὥρα τοίνυν, ὦ φίλε Θεαίτητε, σοὶ μὲν ἐπιδεικνύναι, ἐμοὶ δὲ σκοπεῖσθαι· ὡς εὖ ἴσθι ὅτι Θεόδωρος πολλοὺς δὴ πρός με ἐπαινέσας ξένους τε καὶ ἀστοὺς οὐδένα πω ἐπῄνεσεν ὡς σὲ νυνδή. ΘΕΑΙ. εὖ ἂν ἔχοι, ὦ Σώκρατες· ἀλλʼ ὅρα μὴ παίζων ἔλεγεν. ΣΩ. οὐχ οὗτος ὁ τρόπος Θεοδώρου· ἀλλὰ μὴ ἀναδύου τὰ ὡμολογημένα σκηπτόμενος παίζοντα λέγειν τόνδε, ἵνα μὴ καὶ ἀναγκασθῇ μαρτυρεῖν—πάντως γὰρ οὐδεὶς ἐπισκήψετʼ αὐτῷ—ἀλλὰ θαρρῶν ἔμμενε τῇ ὁμολογίᾳ. ΘΕΑΙ. ἀλλὰ χρὴ ταῦτα ποιεῖν, εἰ σοὶ δοκεῖ. ΣΩ. λέγε δή μοι· μανθάνεις που παρὰ Θεοδώρου γεωμετρίας ἄττα; ΘΕΑΙ. ἔγωγε. ΣΩ. καὶ τῶν περὶ ἀστρονομίαν τε καὶ ἁρμονίας καὶ λογισμούς; ΘΕΑΙ. προθυμοῦμαί γε δή. ΣΩ. καὶ γὰρ ἐγώ, ὦ παῖ, παρά τε τούτου καὶ παρʼ ἄλλων οὓς ἂν οἴωμαί τι τούτων ἐπαΐειν. ἀλλʼ ὅμως τὰ μὲν ἄλλα ἔχω περὶ αὐτὰ μετρίως, μικρὸν δέ τι ἀπορῶ ὃ μετὰ σοῦ τε καὶ τῶνδε σκεπτέον. καί μοι λέγε· ἆρʼ οὐ τὸ μανθάνειν ἐστὶν τὸ σοφώτερον γίγνεσθαι περὶ ὃ μανθάνει τις; ΘΕΑΙ. πῶς γὰρ οὔ; ΣΩ. σοφίᾳ δέ γʼ οἶμαι σοφοὶ οἱ σοφοί. ΘΕΑΙ. ναί. ΣΩ. τοῦτο δὲ μῶν διαφέρει τι ἐπιστήμης; ΘΕΑΙ. τὸ ποῖον; ΣΩ. ἡ σοφία. ἢ οὐχ ἅπερ ἐπιστήμονες ταῦτα καὶ σοφοί;3 ΘΕΑΙ. τί μήν; ΣΩ. ταὐτὸν ἄρα ἐπιστήμη καὶ σοφία; ΘΕΑΙ. ναί.
SOCRATES: But now, I think, if we care at all about the likeness of our faces, we must examine whether he speaks as a painter or not. THEAETETUS: So it seems to me. SOCRATES: Is Theodorus, then, a painter? THEAETETUS: No, not so far as I know. SOCRATES: And is he not a geometer either? THEAETETUS: Most certainly he is, Socrates. SOCRATES: And is he also an astronomer, a calculator, a musician, and versed in all that belongs to education? THEAETETUS: So it seems to me. SOCRATES: If, then, he says we are alike in some part of our body, praising or blaming it in some way, it is not very well worth while to pay attention to him. THEAETETUS: Perhaps not. SOCRATES: But what if he should praise the soul of either of us for virtue and wisdom? Is it not worth while for the hearer to be eager to examine the one who is praised, and for the other to show himself eagerly? THEAETETUS: By all means, Socrates. SOCRATES: Now, then, my dear Theaetetus, is the time for you to show yourself and for me to examine you; for you may be sure that though Theodorus has praised many men to me, both strangers and citizens, he has never praised anyone as he just now praised you. THEAETETUS: I should be glad of that, Socrates; but see that he was not speaking in jest . SOCRATES: That is not Theodorus’s way. Do not back out of our agreement, then, on the pretext that he was speaking in jest, lest he be forced to bear witness—for certainly no one will prosecute him for perjury—but abide by your agreement with courage. THEAETETUS: Well, so I must do, if you think so. SOCRATES: Tell me, then: you learn some geometry from Theodorus, I suppose? THEAETETUS: I do. SOCRATES: And also things concerning astronomy, harmony, and calculations? THEAETETUS: I certainly try my best. SOCRATES: So do I, my boy, both from him and from others whom I think understand any of these things. Yet, although I am moderately well versed in these matters, I am a little puzzled about one small point, which we must examine with you and these others. Tell me: is not learning becoming wiser about that which one learns? THEAETETUS: Of course it is. SOCRATES: And it is by wisdom, I suppose, that wise people are wise? THEAETETUS: Yes. SOCRATES: But is this any different from knowledge? THEAETETUS: What do you mean? SOCRATES: Wisdom. Or are not people wise in just those things of which they have knowledge? THEAETETUS: Of course. SOCRATES: Then knowledge and wisdom are the same thing? THEAETETUS: Yes.
ΣΩ. τοῦτʼ αὐτὸ τοίνυν ἐστὶν ὃ ἀπορῶ καὶ οὐ δύναμαι λαβεῖν ἱκανῶς παρʼ ἐμαυτῷ, ἐπιστήμη ὅτι ποτὲ τυγχάνει ὄν. ἆρʼ οὖν δὴ ἔχομεν λέγειν αὐτό; τί φατέ; τίς ἂν ἡμῶν πρῶτος εἴποι; ὁ δὲ ἁμαρτών, καὶ ὃς ἂν ἀεὶ ἁμαρτάνῃ, καθεδεῖται, ὥσπερ φασὶν οἱ παῖδες οἱ σφαιρίζοντες, ὄνος· ὃς δʼ ἂν περιγένηται ἀναμάρτητος, βασιλεύσει ἡμῶν καὶ ἐπιτάξει ὅτι ἂν βούληται ἀποκρίνεσθαι. τί σιγᾶτε; οὔ τί που, ὦ Θεόδωρε, ἐγὼ ὑπὸ φιλολογίας ἀγροικίζομαι, προθυμούμενος ἡμᾶς ποιῆσαι διαλέγεσθαι καὶ φίλους τε καὶ προσηγόρους ἀλλήλοις γίγνεσθαι; ΘΕΟ. ἥκιστα μέν, ὦ Σώκρατες, τὸ τοιοῦτον ἂν εἴη ἄγροικον, ἀλλὰ τῶν μειρακίων τι κέλευέ σοι ἀποκρίνεσθαι· ἐγὼ μὲν γὰρ ἀήθης τῆς τοιαύτης διαλέκτου, καὶ οὐδʼ αὖ συνεθίζεσθαι ἡλικίαν ἔχω. τοῖσδε δὲ πρέποι τε ἂν τοῦτο καὶ πολὺ πλέον ἐπιδιδοῖεν· τῷ γὰρ ὄντι ἡ νεότης εἰς πᾶν ἐπίδοσιν ἔχει. ἀλλʼ, ὥσπερ ἤρξω, μὴ ἀφίεσο τοῦ Θεαιτήτου ἀλλʼ ἐρώτα. ΣΩ. ἀκούεις δή, ὦ Θεαίτητε, ἃ λέγει Θεόδωρος, ᾧ ἀπειθεῖν, ὡς ἐγὼ οἶμαι, οὔτε σὺ ἐθελήσεις,4 οὔτε θέμις περὶ τὰ τοιαῦτα ἀνδρὶ σοφῷ ἐπιτάττοντι νεώτερον ἀπειθεῖν. ἀλλʼ εὖ καὶ γενναίως εἰπέ· τί σοι δοκεῖ εἶναι ἐπιστήμη; ΘΕΑΙ. ἀλλὰ χρή, ὦ Σώκρατες, ἐπειδήπερ ὑμεῖς κελεύετε. πάντως γάρ, ἄν τι καὶ ἁμάρτω, ἐπανορθώσετε. ΣΩ. πάνυ μὲν οὖν, ἄνπερ γε οἷοί τε ὦμεν. ΘΕΑΙ. δοκεῖ τοίνυν μοι καὶ ἃ παρὰ Θεοδώρου ἄν τις μάθοι ἐπιστῆμαι εἶναι, γεωμετρία τε καὶ ἃς νυνδὴ σὺ διῆλθες, καὶ αὖ σκυτοτομική τε καὶ αἱ τῶν ἄλλων δημιουργῶν τέχναι, πᾶσαί τε καὶ ἑκάστη τούτων, οὐκ ἄλλο τι ἢ ἐπιστήμη εἶναι. ΣΩ. γενναίως γε καὶ φιλοδώρως, ὦ φίλε, ἓν αἰτηθεὶς πολλὰ δίδως καὶ ποικίλα ἀντὶ ἁπλοῦ. ΘΕΑΙ. πῶς τί τοῦτο λέγεις, ὦ Σώκρατες; ΣΩ. ἴσως μὲν οὐδέν· ὃ μέντοι οἶμαι, φράσω. ὅταν λέγῃς σκυτικήν, μή τι ἄλλο φράζεις ἢ ἐπιστήμην ὑποδημάτων ἐργασίας; ΘΕΑΙ. οὐδέν. ΣΩ. τί δʼ ὅταν τεκτονικήν; μή τι ἄλλο ἢ ἐπιστήμην τῆς τῶν ξυλίνων σκευῶν ἐργασίας; ΘΕΑΙ. οὐδὲ τοῦτο. ΣΩ. οὐκοῦν ἐν ἀμφοῖν, οὗ ἑκατέρα ἐπιστήμη, τοῦτο ὁρίζεις; ΘΕΑΙ. ναί. ΣΩ. τὸ δέ γʼ ἐρωτηθέν, ὦ Θεαίτητε, οὐ τοῦτο ἦν, τίνων ἡ ἐπιστήμη, οὐδὲ ὁπόσαι τινές· οὐ γὰρ ἀριθμῆσαι αὐτὰς βουλόμενοι ἠρόμεθα ἀλλὰ γνῶναι ἐπιστήμην αὐτὸ ὅτι ποτʼ ἐστίν. ἢ οὐδὲν λέγω; ΘΕΑΙ. πάνυ μὲν οὖν ὀρθῶς.
SOCRATES: This, then, is the very thing I am puzzled about and cannot sufficiently grasp by myself: what knowledge actually is. Can we, then, state it? What do you all say? Who of us will speak first? He who makes a mistake, and whoever keeps making mistakes, shall sit down as the ‘donkey,’ as the children playing ball say; but whoever comes through without making a mistake shall be our king and shall order us to answer whatever he pleases. Why are you silent? Surely, Theodorus, I am not behaving rudely because of my love of talk, in my eagerness to make us converse and become friends and talkative with one another? THEODORUS: By no means, Socrates, would such a thing be rude. But bid one of the youths answer you; for I am unaccustomed to this kind of discussion, and moreover, I am not of an age to get used to it. But for them, this would be suitable and they would improve far more; for indeed, youth is capable of improvement in everything. So, as you began, do not let Theaetetus off, but question him. SOCRATES: You hear, then, Theaetetus, what Theodorus says, whom you will not, I think, wish to disobey, nor is it right for a younger man to disobey a wise man when he commands in such matters. Speak, then, well and nobly: what do you think knowledge is? THEAETETUS: Well, I must do so, Socrates, since you both command it. For in any case, if I make a mistake, you will correct me. SOCRATES: By all means, if we are able. THEAETETUS: Well, then, it seems to me that the things one might learn from Theodorus are knowledges—geometry and the ones you just went through— and again, shoemaking and the crafts of the other artisans, all and each of these are nothing else than knowledge. SOCRATES: Nobly and generously indeed, my friend! When asked for one thing, you give many and various things instead of a simple one. THEAETETUS: What do you mean by that, Socrates? SOCRATES: Perhaps it is nothing; but I will tell you what I think. When you say ‘shoemaking,’ do you mean anything else than the knowledge of making shoes? THEAETETUS: Nothing. SOCRATES: And what when you say ‘carpentry’? Anything else than the knowledge of making wooden utensils? THEAETETUS: Not that either. SOCRATES: Therefore, in both cases, you define that of which each is the knowledge? THEAETETUS: Yes. SOCRATES: But, Theaetetus, what was asked was not this, what things knowledge is of, nor how many knowledges there are; for we did not ask because we wanted to count them, but to know what knowledge itself actually is. Or am I talking nonsense? THEAETETUS: No, you are entirely right.
- 145aὅσον γέ με εἰδέναι
An idiomatic use of the absolute infinitive of limitation, meaning 'as far as I know.' The accusative με functions as the subject of the infinitive.
- 145aτοῦ σώματός τι
τι is an accusative of respect ('in some respect'), and τοῦ σώματος is a partitive genitive defining the sphere ('of the body'). The phrase means 'in some respect of the body.'
- 145eἢ οὐχ ἅπερ ἐπιστήμονες ταῦτα καὶ σοφοί;
The verb εἰσιν is omitted in both clauses. ἅπερ is a neuter plural accusative of respect ('in the very things which'), and ταῦτα is the demonstrative pronoun referencing it.
- 146bᾧ ἀπειθεῖν... οὔτε σοὶ ἐθελήσεις
ᾧ is a dative relative pronoun serving as the object of the infinitive ἀπειθεῖν. The infinitive itself depends on ἐθελήσεις (and on the following clause).
