Epictetus · The Handbook
Chapter 7
Think of a voyage. When the ship anchors and you go ashore for fresh water, you may pick up a little shellfish or an onion along the way – but your mind must stay fixed on the ship, and you must keep turning back toward it, in case the captain calls. And if he calls, you must drop all of it, or you will be thrown aboard tied up like the sheep. So it is in life. If you are given a little wife and child instead of an onion and a shellfish, nothing prevents it. But if the captain calls, run to the ship. Drop everything. Don’t look back. And if you are old, never stray far from the ship, so that when the call comes, you are not missing.
καθάπερ ἐν πλῷ τοῦ πλοίου καθορμισθέντος εἰ ἐξέλθοις ὑδρεύσασθαι, ὁδοῦ μὲν πάρεργον καὶ κοχλίδιον ἀναλέξῃ καὶ βολβάριον, τετάσθαι δὲ δεῖ τὴν διάνοιαν ἐπὶ τὸ πλοῖον καὶ συνεχῶς ἐπιστρέφεσθαι, μή ποτε ὁ κυβερνήτης καλέσῃ, κἂν καλέσῃ, πάντα ἐκεῖνα ἀφιέναι, ἵνα μὴ δεδεμένος ἐμβληθῇς ὡς τὰ πρόβατα· οὕτω καὶ ἐν τῷ βίῳ, ἐὰν διδῶται ἀντὶ βολβαρίου καὶ κοχλιδίου γυναικάριον καὶ παιδίον, οὐδὲν κωλύσει· ἐὰν δὲ ὁ κυβερνήτης καλέσῃ, τρέχε ἐπὶ τὸ πλοῖον ἀφεὶς ἐκεῖνα ἅπαντα μηδὲ ἐπιστρεφόμενος. ἐὰν δὲ γέρων ᾖς, μηδὲ ἀπαλλαγῇς ποτε τοῦ πλοίου μακράν, μή ποτε καλοῦντος ἐλλίπῃς.