ἄλλων: obj. gen. Cf. Gorg. 514 a ἐὰν μὴ καλὴ κἀγαθὴ ἡ διάνοια ᾖ τῶν μελ- λόντων ἢ χρήματα πολλὰ λαμβάνειν ἢ ἀρχήν τινων ἢ ἄλλην δύναμιν ἡντινοῦν unless there be an honorable and good mind in those who are to receive much money, or the rule of others, or any other sort of power.
φαῖεν ἄν: after the double question, refers to the second member, which introduces with the corrective ἤ the true belief of the speaker.
ταῦτα κτἑ.: must refer to τὰ γυμνάσια κτἑ., ll. 29 f. It is the conclusion of the whole series beginning with οὐκοῦν πάλιν l. 27, and corresponds to the closing sentence of the first series οὐκοῦν φαίνεται κτἑ. l. 23. For this reason δέ (which the Mss. have for δή) cannot be correct.
ἀλλ᾽ ἤ: cf. 329 d, l. 6, 356 a, l. 31.
ὄν: for οὖσαν, under the influence of ἀγαθόν. Cf. 359 d, l. 31 οὖσα, and so freq.