οὐκ ἔστ' ἀκριβὲς οὐδὲν εἰς εὐανδρίαν

From LSJ

κοινὴ γὰρ ἡ τύχη καὶ τὸ μέλλον ἀόρατον → fortune is common to all, the future is unknown | fortune is common to all and the future unknown | fate is common to all and the future unknown

Source

English > Greek (Woodhouse Quotes Reversed)

there is no sure mark to show true manhood