Plato, Laws 908a

δεσμὸς μὲν οὖν ὑπαρχέτω πᾶσιν· δεσμωτηρίων δὲ ὄντων ἐν τῇ πόλει τριῶν, ἑνὸς μὲν κοινοῦ τοῖς πλείστοις περὶ ἀγοράν, σωτηρίας ἕνεκα τοῖς πολλοῖς τῶν σωμάτων, ἑνὸς δὲ περὶ τὸν τῶν νύκτωρ συλλεγομένων σύλλογον, σωφρονιστήριον ἐπονομαζόμενον, ἑνὸς δὲ αὖ κατὰ μέσην τὴν χώραν, ὅπῃπερ ἂν ἔρημός τε καὶ ὡς ὅτι μάλιστα ἀγριώτατος ᾖ τόπος, τιμωρίας ἔχων ἐπωνυμίαν φήμην τινά· περὶ ἀσέβειαν δὲ ὄντων αἰτίαις

for each separate act of impiety. Imprisonment shall be imposed in every case; and since there are three prisons in the State (namely, one public prison near the market for most cases, to secure the persons of the average criminals; a second, situated near the assembly-room of the officials who hold nightly assemblies, and named the reformatory; and a third, situated in the middle of the country, in the wildest and loneliest spot possible, and named after retribution), and since men are involved in impiety