[11] Plato, Lysis, 212-213. 213 C:— εἰ μήτε οἱ φιλοῦντες (1) φίλοι ἔσονται, μήθ’ οἱ φιλούμενοι (2), μήθ’ οἱ φιλοῦντές τε καὶ φιλούμενοι (3), &c. Sokrates here professes to have shown grounds for rejecting all these three suppositions. But if we follow the preceding argument, we shall see that he has shown grounds only against the first two, not against the third.

Questions addressed to Lysis. Appeal to the maxims of the poets. Like is the friend of like. Canvassed and rejected.

Sokrates now takes up a different aspect of the question, and turns to Lysis, inviting him to consider what has been laid down by the poets, “our fathers and guides in respect of wisdom”.[12] Homer says that the Gods originate friendship, by bringing the like man to his like: Empedokles and other physical philosophers have also asserted, that like must always and of necessity be the friend of like. These wise teachers cannot mean (continues Sokrates) that bad men are friends of each other. The bad man can be no one’s friend. He is not even like himself, but ever wayward and insane:— much less can he be like to any one else, even to another bad man. They mean that the good alone are like to each other, and friends to each other.[13] But is this true? What good, or what harm, can like do to like, which it does not also do to itself? How can there be reciprocal love between parties who render to each other no reciprocal aid? Is not the good man, so far forth as good, sufficient to himself, — standing in need of no one — and therefore loving no one? How can good men care much for each other, seeing that they thus neither regret each other when absent, nor have need of each other when present?[14]

[12] Plato, Lysis, 213 E: σκοποῦντα κατὰ τοὺς ποιητάς· οὗτοι γὰρ ἡμῖν ὥσπερ πατέρες τῆς σοφίας εἰσὶ καὶ ἡγεμόνες.

[13] Plato, Lysis, 214.

[14] Plato, Lysis, 215 B: Ὁ δὲ μή του δεόμενος, οὐδέ τι ἀγαπῴ ἂν.… Ὃ δὲ μὴ ἀγαπῴη, οὐδ’ ἂν φιλοῖ.… Πῶς οὖν οἱ ἀγαθοὶ τοῖς ἀγαθοῖς ἡμῖν φίλοι ἔσονται τὴν ἀρχήν, οἳ μήτε ἁπόντες ποθεινοὶ ἀλλήλοις — ἱκανοὶ γὰρ ἑαυτοῖς καὶ χωρὶς ὄντες — μήτε παρόντες χρείαν αὐτῶν ἔχουσι; τοὺς δὴ τοιούτους τίς μηχανὴ περὶ πολλοῦ ποιεῖσθαι ἀλληλους;

Other poets declare that likeness is a cause of aversion; unlikeness, of friendship. Reasons pro and con. Rejected.

It appears, therefore, Lysis (continues Sokrates), that we are travelling in the wrong road, and must try another direction. I now remember to have recently heard some one affirming — contrary to what we have just said — that likeness is a cause of aversion, and unlikeness a cause of friendship. He too produced evidence from the poets: for Hesiod tells us, that “potter is jealous of potter, and bard of bard”. Things most alike are most full of envy, jealousy and hatred to each other: things most unlike, are most full of friendship. Thus the poor man is of necessity a friend to the rich, the weak man to the strong, for the sake of protection: the sick man, for similar reason, to the physician. In general, every ignorant man loves, and is a friend to, the man of knowledge. Nay, there are also physical philosophers, who assert that this principle pervades all nature; that dry is the friend of moist, cold of hot, and so forth: that all contraries serve as nourishment to their contraries. These are ingenious teachers: but if we follow them, we shall have the cleverest disputants attacking us immediately, and asking — What! is the opposite essentially a friend to its opposite? Do you mean that unjust is essentially the friend of just — temperate of intemperate — good of evil? Impossible: the doctrine cannot be maintained.[15]

[15] Plato, Lysis, 215-216.

Confusion of Sokrates. He suggests, That the Indifferent (neither good nor evil) is friend to the Good.