Plato, Laws 840b

τὰς ψυχάς, τὰ δὲ σώματα πολὺ μᾶλλον σφριγῶντες. ἀληθῆ ταῦτα λέγεις ὅτι σφόδρα ὑπὸ τῶν παλαιῶν ἐστιν εἰρημένα περὶ τούτων τῶν ἀθλητῶν ὡς ὄντως ποτὲ γενόμενα. τί οὖν; οἱ μὲν ἄρα νίκης ἕνεκα πάλης καὶ δρόμων καὶ τῶν τοιούτων ἐτόλμησαν ἀπέχεσθαι λεγομένου πράγματος ὑπὸ τῶν πολλῶν εὐδαίμονος, οἱ δὲ ἡμέτεροι παῖδες ἀδυνατήσουσι καρτερεῖν πολὺ καλλίονος ἕνεκα νίκης, ἣν

but they also possessed much more sexual vigor of body. That this really happened in the case of these athletes is indeed, as you say, confidently affirmed by the ancients. Well then, if those men had the fortitude to abstain from that which most men count bliss for the sake of victory in wrestling, running, and the like, shall our boys be unable to hold out in order to win a much nobler victory—that which is the noblest of all victories, as we shall tell them from their childhood’s days, charming them into belief, we hope, by tales