Note 109 — Chapter XXXVII · REPUBLIC — REMARKS ON THE PLATONIC COMMONWEALTH.
Reading edition
This is his phrase, repeated more than once — τίκτειν τῇ πόλει, γεννᾷν τῇ πόλει — τῶν εἰς τὸ κοινὸν γεννήσεων (pp. 460-461).
What Lucan (ii. 387) observes about Cato of Utica, is applicable to the Guardians of the Platonic Republic:—
“Venerisque huic maximus usus Progenies. Urbi pater est, Urbique maritus.”