Plato, Laws 941c

ταῦτα δὲ νομοθέτῃ μᾶλλον προσήκει γιγνώσκειν ἢ ποιηταῖς σύμπασιν. ὁ μὲν οὖν πεισθεὶς ἡμῶν τῷ λόγῳ εὐτυχεῖ τε καὶ εἰς χρόνον ἅπαντα εὐτυχοῖ, ὁ δὲ ἀπιστήσας τὸ μετὰ ταῦτα τοιῷδέ τινι μαχέσθω νόμῳ· ἐάν τίς τι κλέπτῃ δημόσιον μέγα ἢ καὶ σμικρόν, τῆς αὐτῆς δίκης δεῖ. μικρόν τι γὰρ ὁ κλέπτων ἔρωτι μὲν ταὐτῷ, δυνάμει δὲ ἐλάττονι

and this the lawgiver, as it behoves him, knows better than the whole tribe of poets. He, therefore, that hearkens to our speech is blessed, and deserves blessing for all time; but he that hearkens not shall, in the next place, be holden by this law:—If anyone steals any piece of public property, he shall receive the same punishment, be it great or small. For he that steals a small thing steals with equal greed, though with less power, while he that takes a large thing which he has not deposited does wrong to the full;