Gonzalez Lodge, Commentary on Plato: Gorgias

κοινωνία: in passing, Socrates shows that the only foundation for an all-embracing view of the world is found in correct moral principle. Both in nature and in the universe the harmony of the parts with each other and with the whole is essential for existence. The state, and, proceeding further, the moral condition of the individual soul, should therefore be modelled on the principle of general order which pervades the world.

οἱ σοφοί: those especially meant are the Pythagoreans, to whose views Plato had had recourse before. Cf. 493 a. Pythagoras is said first to have applied to the world the name κόσμος. He was followed by Empedocles with his scientific system, according to which there are two principles in the world,—love, φιλότης (στοργή, Ἀφροδίτη, ἁρμονίη), and hate, νεῖκος. The former is the cause of association and union, the latter of separation and disunion. Cf. Emped. 94, Karst. Ἄλλοτε μὲν φιλότητι συνερχόμεν᾽ εἰς ἓν ἅπαντα, | Ἄλλοτε δ᾽ αὖ δίχ̓ ἕκαστα φορεύμενα νείκεος ἔχθει.