Plato, Laws 942d

ἐκ παντὸς τοῦ βίου ἁπάντων τῶν ἀνθρώπων τε καὶ τῶν ὑπʼ ἀνθρώπους θηρίων. καὶ δὴ καὶ χορείας πάσας εἰς τὰς ἀριστείας τὰς κατὰ πόλεμον βλεπούσας χορεύειν, καὶ ὅλην εὐκολίαν τε καὶ εὐχέρειαν ἐπιτηδεύειν τῶν αὐτῶν εἵνεκα, καρτερήσεις τε αὖ σίτων καὶ ποτῶν καὶ χειμώνων καὶ τῶν ἐναντίων καὶ κοίτης σκληρᾶς, καὶ τὸ μέγιστον, τὴν τῆς κεφαλῆς καὶ ποδῶν δύναμιν μὴ διαφθείρειν τῇ τῶν ἀλλοτρίων σκεπασμάτων περικαλυφῇ, τὴν τῶν οἰκείων ἀπολλύντας

must be utterly removed from the lives of all mankind, and of the beasts also that are subject to man. Moreover, with a view to excellence in war, they shall dance all kinds of dances, and with the same object they shall cultivate in general suppleness and dexterity, and endurance also in the matter of foods and drinks and cold and heat and hard beds; and, what is most important, they shall accustom themselves not to spoil the natural powers of head and feet by wrapping them in coverings of alien material, and thereby ruining the production and growth