Plato, Meno 80c

γιγνώσκω οὗ ἕνεκά με ᾔκασας. τίνος δὴ οἴει; ἵνα σε ἀντεικάσω. ἐγὼ δὲ τοῦτο οἶδα περὶ πάντων τῶν καλῶν, ὅτι χαίρουσιν εἰκαζόμενοι—λυσιτελεῖ γὰρ αὐτοῖς· καλαὶ γὰρ οἶμαι τῶν καλῶν καὶ αἱ εἰκόνες—ἀλλʼ οὐκ ἀντεικάσομαί σε. ἐγὼ δέ, εἰ μὲν ἡ νάρκη αὐτὴ ναρκῶσα οὕτω καὶ τοὺς ἄλλους ποιεῖ ναρκᾶν, ἔοικα αὐτῇ· εἰ δὲ μή, οὔ. οὐ γὰρ εὐπορῶν αὐτὸς τοὺς ἄλλους ποιῶ ἀπορεῖν, ἀλλὰ παντὸς μᾶλλον αὐτὸς ἀπορῶν οὕτως καὶ τοὺς ἄλλους ποιῶ

I perceive your aim in thus comparing me. What was it? That I might compare you in return. One thing I know about all handsome people is this—they delight in being compared to something. They do well over it, since fine features, I suppose, must have fine similes. But I am not for playing your game. As for me, if the torpedo is torpid itself while causing others to be torpid, I am like it, but not otherwise. For it is not from any sureness in myself that I cause others to doubt: it is from being in more doubt than anyone else that