Plato, Letters 315c

ἐγὼ δὲ οὐδὲ ἀνθρώπῳ κλήσει, μήτι δὴ θεῷ, παρακελευσαίμην ἂν δρᾶν τοῦτο, θεῷ μέν, ὅτι παρὰ φύσιν προστάττοιμʼ ἄν, πόρρω γὰρ ἡδονῆς ἵδρυται καὶ λύπης τὸ θεῖον, ἀνθρώπῳ δέ, ὅτι τὰ πολλὰ βλάβην ἡδονὴ καὶ λύπη γεννᾷ, δυσμάθειαν καὶ λήθην καὶ ἀφροσύνην καὶ ὕβριν τίκτουσα ἐν τῇ ψυχῇ. καὶ ταῦτα μὲν οὕτως εἰρήσθω παρʼ ἐμοῦ περὶ τῆς προσρήσεως· σὺ δʼ ἀναγνοὺς αὐτά, ὅπῃ βούλει δέξασθαι, ταύτῃ δέχου.φασὶν δʼ οὐκ ὀλίγοι λέγειν σε πρός τινας τῶν παρὰ σὲ

But as for me, I would not call upon a man, and much less a god, and bid him enjoy himself—a god, because I would be imposing a task contrary to his nature (since the Deity has his abode far beyond pleasure or pain),—nor yet a man, because pleasure and pain generate mischief for the most part, since they breed in the soul mental sloth and forgetfulness and witlessness and insolence. Let such, then, be my declaration regarding the mode of address; and you, when you read it, accept it in what sense you please. It is stated by not a few that you related to some