Plato, Laws 803a

τις αὕτη· τούτων δὲ αὐτῶν διδασκαλία καὶ παράδοσις λεγέσθω τὸ μετὰ τοῦτο, τίνα τρόπον χρὴ καὶ οἷστισιν καὶ πότε πράττειν ἕκαστα αὐτῶν. οἷον δή τις ναυπηγὸς τὴν τῆς ναυπηγίας ἀρχὴν καταβαλλόμενος τὰ τροπιδεῖα ὑπογράφεται τῶν πλοίων σχήματα, ταὐτὸν δή μοι κἀγὼ φαίνομαι ἐμαυτῷ δρᾶν, τὰ τῶν βίων πειρώμενος σχήματα διαστήσασθαι κατὰ τρόπους τοὺς τῶν ψυχῶν, ὄντως αὐτῶν τὰ τροπιδεῖα καταβάλλεσθαι,

Such then is our regulation of the matter. We have next to discuss the question of the teaching and imparting of these subjects—how, by whom, and when each of them should be practiced. Just as a shipwright at the commencement of his building outlines the shape of his vessel by laying down her keel, so I appear to myself to be doing just the same—trying to frame, that is, the shapes of lives according to the modes of their souls, and thus literally