Plato, Laws 942a

ἀποτίνειν αὐτὸν ἡ κρίσις γιγνέσθω· τὸν δὲ ἀστὸν καὶ τεθραμμένον ὡς ἔσται τεθραμμένος, ἂν πατρίδα συλῶν ἢ βιαζόμενος ἁλίσκηται, ἐάντʼ ἐπʼ αὐτοφώρῳ ἐάντε μή, σχεδὸν ὡς ἀνίατον ὄντα θανάτῳ ζημιοῦν.στρατιῶν δὲ ἕνεκα πολλὴ μὲν συμβουλή, πολλοὶ δὲ νόμοι γίγνονται κατὰ τρόπον, μέγιστον δὲ τὸ μηδέποτε ἄναρχον μηδένα εἶναι, μήτʼ ἄρρενα μήτε θήλειαν, μηδέ τινος ἔθει ψυχὴν εἰθίσθαι μήτε σπουδάζοντος μήτʼ ἐν παιδιαῖς

or what fine he shall pay. But in the case of a citizen, who has been reared in the way he is to be reared,—if he be convicted of plundering or doing violence to his fatherland, whether he has been caught in the act or not, he shall be punished by death, as being practically incurable. Military organization is the subject of much consultation and of many appropriate laws. The main principle is this—that nobody, male or female, should ever be left without control, nor should anyone, whether at work or in play, grow habituated in mind to acting alone and on his own initiative, but he should live always, both in war