Plato, Epinomis 979d

διεληλύθαμεν, οὐδεὶς οὐδενὶ τὸ παράπαν ἔτι συνομολογεῖ τῶν πολλῶν. νῦν οὖν δὴ παρὰ πάσας τὰς πρόσθεν σοφίας οὐ φαύλην τινὰ ἀνευρίσκομεν εἰς αὐτά γε ταῦτα, τὸ δοκεῖν σοφὸν εἶναι τόν γε μεμαθηκότα ἅπερ καὶ διεληλύθαμεν· εἰ δʼ ἔστιν σοφὸς ὁ ταῦτʼ ἐπιστήμων καὶ ἀγαθός, τούτου δὴ πέρι λόγον δεῖ λαβεῖν. ὦ ξένε, ὡς εἰκότως εἶπες ὅτι περὶ μεγάλων μεγάλα ἐπιχειρεῖς φράζειν.

explained—as to what its wisdom should be. So now we are discovering, besides all those former kinds, a wisdom of no mean worth for this very purpose of showing how he is wise who has learnt the things that we have explained. And if he is wise who has knowledge of these things and is good at them, we must now take account of him. Good sir, how properly you said that you are undertaking to express great thoughts on great subjects!