Laudator Temporis Acti

Xenophon, Memorabilia 1.6.14 (Socrates speaking; tr. Hugh Tredennick, rev. Robin Waterfield):

As for myself, Antiphon, I take as much pleasure in good friends as other people take in a good horse or dog or bird — in fact, I take more; and if I have anything good to teach them, I teach it, and I introduce them to any others from whom I think they will get help in the quest for goodness. And in company with my friends, I open and read from beginning to end the books in which the wise men of past times have written down and bequeathed to us their treasures; and when we see anything good, we take it for ourselves; and we regard our mutual friendship as great gain.

ἐγὼ δ᾽ οὖν καὶ αὐτός, ὦ Ἀντιφῶν, ὥσπερ ἄλλος τις ἢ ἵππῳ ἀγαθῷ ἢ κυνὶ ἢ ὄρνιθι ἥδεται, οὕτω καὶ ἔτι μᾶλλον ἥδομαι φίλοις ἀγαθοῖς, καὶ ἐάν τι ἔχω ἀγαθόν, διδάσκω, καὶ ἄλλοις συνίστημι παρ᾽ ὧν ἂν ἡγῶμαι ὠφελήσεσθαί τι αὐτοὺς εἰς ἀρετήν· καὶ τοὺς θησαυροὺς τῶν πάλαι σοφῶν ἀνδρῶν, οὓς ἐκεῖνοι κατέλιπον ἐν βιβλίοις γράψαντες, ἀνελίττων κοινῇ σὺν τοῖς φίλοις διέρχομαι, καὶ ἄν τι ὁρῶμεν ἀγαθὸν ἐκλεγόμεθα· καὶ μέγα νομίζομεν κέρδος, ἐὰν ἀλλήλοις φίλοι γιγνώμεθα.