Chasing the sun. Marcus Aurelius 4.37

Some worthy goals exist as ends we strive for, but never achieve.

Ἤδη τεθνήξῃ καὶ οὔπω οὔτε ἁπλοῦς οὔτε ἀτάραχος οὔτε ἀνύποπτος τοῦ βλαβῆναι ἂν ἔξωθεν οὔτε ἵλεως πρὸς πάντας οὔτε τὸ φρονεῖν ἐν μόνῳ τῷ δικαιοπραγεῖν τιθέμενος.

You shall be dead before you achieve simplicity, calm, or release from the suspicion that the world has harmed you. Death will not find you gracious to all men, with thoughts for nothing except just action.