τὸ λακωνίζειν πολὺ μᾶλλόν ἐστιν φιλοσοφεῖν ἢ φιλογυμναστεῖν
From LSJ
Ὑπὲρ εὐσεβείας καὶ λάλει καὶ μάνθανε → Ea fator atque disce, quae pietas probat → Dein Sprechen, Lernen diene nur der Frömmigkeit
Greek to English
to behave like a Lacedaemonian is much more to love wisdom than to love gymnastics, the Spartan cult is much more the pursuit of wisdom than of athletics (Plato, Protagoras 342e6)
Modern Greek
καλύτερα λακωνίζει κανείς φιλοσοφώντας παρά ασκώντας τη γυμναστική