Ask at the forum if you have an Ancient or Modern Greek query!
Αὐτάρκης ἔσῃ, ἂν μάθῃς τί τὸ καλὸν κἀγαθόν ἐστι → You will be contented with your lot if you learn what the honourable and good is
conduct: P. and V. πρᾶξις, ἡ.
