οὐδ’ εἰκόνα ἂν ἔτι κτλ.
: such as we saw before in VI 506 E ff. Glauco's question refers to the method, Socrates' reply to the object, of Dialectic: it is of course impossible to separate the two. On
διισχυρίζεσθαι followed by
ἰσχυριστέον see I 336 E note
ὅτι μὲν δεῖ κτλ.
Cf. VI 505 E ff., supra 517 C (
δεῖ ταύτην ἰδεῖν κτλ.), 519 C, 526 E (
ὃ δεῖ αὐτὴν παντὶ τρόπῳ ἰδεῖν). These passages are strongly in favour of
δεῖ as against
δή (see cr. n.), which Schneider, Hermann, and Stallbaum retain.
ἰδεῖν is unpleasing if we read
δή, and
μὲν δή is not free from difficulty here. For
μέν without
δέ following see V 475 E note
τόδε γοῦν κτλ.
Socrates proceeds to establish what he has just asserted, viz. that only dialectic can reveal the Good to those who are versed in the propaedeutic ‘arts’ or sciences. In this at least (he says) every one will agree with us, viz. ‘that it is some
other
μέθοδος’ (different from the five propaedeutic ‘arts’) ‘which endeavours in every case to apprehend by scientific procedure concerning each several self’ (e.g.
αὐτοῦ καλοῦ, αὐτοῦ δικαίου, etc.) ‘that which they severally
are’ (the
οὐσία of each) e.g.
ὃ ἔστιν καλόν, etc. Cf. 531 D
οὐ γάρ που δοκοῦσί γε σοι οἱ ταῦτα (the five propaedeutic ‘arts’)
δεινοὶ διαλεκτικοὶ εἶναι. Socrates continues: while all the other arts (except
τὰ μαθηματικά) address themselves
πρὸς δόξας ἀνθρώπων, etc., even the mathematical ‘arts’ give no
λόγος of their
ὑποθέσεις (and so do not apprehend the
ὃ ἔστιν of their subject). Dialectic and Dialectic
alone does this (533 C), so that Dialectic is the
ἄλλη τις μέθοδος and
alone satisfies our needs.
τόδε is the object of
λέγουσιν, on which, and not on
ἀμφισβητήσει, ὡς depends.
ἄλλη means other than
ὧν νῦν δὴ διήλθομεν. ἀλλά is opposed to the negative notion contained in
ἄλλη (another
μέθοδος,
not that of the five ‘arts,’ but etc.). Badham arbitrarily proposes to read
ὅρῳ περιλαμβάνειν for
ὁδῷ περὶ παντὸς λαμβάνειν. The expression
περὶ παντός ‘about everything’ is of course different from
αὐτοῦ ἑκάστου πέρι, and
μέθοδος ὁδῷ is the kind of collocation in which Plato delights. For other views on this sentence see App. XIV.
αἱ μὲν ἄλλαι κτλ.
Cf.
Phil. 55 E
— 58 E. Plato is thinking of a threefold classification of arts under
κολακική, ποιητική, and
ἐπιμελητική or the like (J. and C., comparing
Gorg. 463 ff., 501, 502,
Soph. 222 E
, 265 ff.,
Pol. 261 ff.).
τετράφαται
is one of Plato's archaisms: see on I 330 B. Such forms are not found in inscriptions after 410 B.C. (Meisterhans^{3} p. 166).
γεωμετρίας ‐‐ ταύτῃ
. For the syntax cf. VI 511 B note
ὀνειρώττουσι κτλ.
Krohn (
Pl. St. pp. 179—181) accuses Plato of a sudden
volte face in regard to mathematical studies. It is true that the same language is used of
δόξα in V 476 C (cf. VII 520 C), but there are dreams and dreams, and we may fairly say that if the
προπαιδεία is only a dream in comparison with Dialectic, at least it is one of those dreams which come through the gates of horn.
ᾧ γὰρ ἀρχὴ κτλ.
See VI 510 C, D notes
ὁμολογίαν means ‘agreement’ ‘harmony’ (“Übereinstimmung” Schneider), viz. of
ἀρχή, τελευτή and
τὰ μεταξύ, not ‘admissions’ (as D. and V. translate): cf.
ὁμολογουμένως l.c.
οὐκοῦν κτλ.
‘Well then,’ said I, ‘the method of dialectic alone proceeds by the destruction of hypotheses to the actual first principle, in order to make its results secure.’ Dialectic examines and cancels (
ἀναιρεῖ) one
ὑπόθεσις after another, till in the end it reaches the Idea of Good. Suppose for example that
ὁσιότης is the subject of discussion. Various
ὑποθέσεις are proposed, tested, and overthrown. Out of the ruins of the former
ὑποθέσεις we built a new and better one, which must in its turn be thoroughly tested, tried, and perhaps overthrown, before it can serve as a stepping-stone to one which is higher, truer and better: cf. 534 B, C. Now this process of testing, revising, discarding, is not, ideally speaking, complete until we examine the relations of our
ὑπόθεσις of
ὁσιότης with all
νοητά, and in such an examination we apply the same ‘hypothetical method’ throughout the whole noetic sphere, testing and correcting all our
ὑποθέσεις by one another. In the final stage, which is of course only an ideal, all our
ὑποθέσεις become exact counterparts of the Ideas, and we have reached the
ἀρχή or Good. Thereafter the results of Dialectic are
βέβαια: see VI 511 B. The earlier steps in this dialectical ascent may be illustrated from many, if not most, of the Platonic dialogues. For
ἀναιροῦσα cf. Arist.
Topic.
Γ 6. 120^{a} 6—31, and especially
Eth. Eud. II 6. 1222^{b} 27 f.
κινουμένης τῆς ἀρχῆς πάντα μάλιστ’ ἂν τὰ δεικνύμενα μεταβάλλοι, αὐτὰ δ’ αὑτὰ οὐ μεταβάλλει ἀναιρουμένου θατέρου ὑπὸ θατέρου, ἂν μὴ τῷ τὴν ὑπόθεσιν ἀνελεῖν καὶ δἰ ἐκείνης δεῖξαι. The word is often used in connexion with the Eleatic dialectic, of which Plato's
ἡ ἐξ ὑποθέσεως ἀνάλυσις (Alcin.
Isag. 7), here described, is a development: see RP^{7}. §§ 95 note a, 105 A—106, 110—115. For other views on this passage see App. XV: and for a farther discussion of the method itself and its permanent value in the history of investigation consult App. III.
βορβόρῳ
. The image is taken from Orphic theology: cf. II 363 D note
ἔν γε τῷ πρόσθεν
. VI 511 D, E.
ἔστι δ’ , ὡς κτλ.
Cf.
Laws 864 A. Plato constantly reminds us that he has no fixed terminology (see Hirmer
Entst. u. Komp. d. pl. Pol. p. 647 and Hirzel
Der Dialog pp. 246 ff.), and the ancients were well aware of this fact, though modern interpreters of Plato too often forget it; see the references collected by Hermann
Gesch. u. Syst., p. 573 note 106 and D. L. III 63 (quoted by Hirmer).
οὐ γὰρ οὖν, ἔφη
. See cr. n. The interpolation which follows these words in all MSS except
Ξ is discussed in App. XVI.
ἀρέσκει οὖν
. See cr. n. Though
γοῦν is in A and
Ξ, a majority of MSS read
οὖν, which is alone suitable. The same error occurs in one or more MSS in V 455 E and VI 506 C (Schneider).