Plato, Laws 857c

ἀντικρούσας ἀνήγειρας, ἐννενοηκότα δὲ καὶ πρότερον ὑπέμνησας ὅτι τὰ περὶ τὴν τῶν νόμων θέσιν οὐδενὶ τρόπῳ πώποτε γέγονεν ὀρθῶς διαπεπονημένα, ὥς γε ἐν τῷ νῦν παραπεπτωκότι λέγειν. πῶς δʼ αὖ καὶ τοῦτο λέγομεν; οὐ κακῶς ἀπῃκάσαμεν, ὅτε δούλοις ὡς ἰατρευομένοις ὑπὸ δούλων ἀπῃκάζομεν πάντας τοὺς νῦν νομοθετουμένους. εὖ γὰρ ἐπίστασθαι δεῖ τὸ τοιόνδε, ὡς εἰ καταλάβοι ποτέ τις ἰατρὸς τῶν ταῖς ἐμπειρίαις ἄνευ λόγου τὴν ἰατρικὴν μεταχειριζομένων

when I was going, as it were, full steam ahead, and so have woken me up. You have reminded me of a previous reflection of mine, how that none of the attempts hitherto made at legislation have ever been carried out rightly—as in fact we may infer from the instance before us. What do I mean to imply by this remark? It was no bad comparison we made when we compared all existing legislation to the doctoring of slaves by slaves. For one should carefully notice this, that if any of the doctors who practice medicine by purely empirical methods,