§3.12.1Ἐὰν τὸ παρὸν ἐνεργῇς ἑπόμενος τῷ ὀρθῷ λόγῳ, ἐσπουδασμένως, ἐρρωμένως, εὐμενῶς, καὶ μηδὲν παρεμπόρευμα, ἀλλὰ τὸν ἑαυτοῦ δαίμονα καθαρὸν ἑστῶτα τηρῇς, ὡσεὶ καὶ ἤδη ἀποδοῦναι δέοι· ἐὰν τοῦτο συνάπτῃς μηδὲν περιμένων μηδὲ Φεύγων, ἀλλὰ τῇ παρούσῃ κατὰ Φύσιν ἐνεργείᾳ καὶ τῇ ὧν λέγεις καὶ Φθέγγῃ ἡρωικῇ ἀληθείᾳ ἀρκούμενος, εὐζωήσεις.
If you perform the present task following right reason, earnestly, vigorously, benevolently, and admit no distraction, but keep your own divine spark pure and upright, as if you had to surrender it at any moment; if you bind yourself to this, expecting nothing and avoiding nothing, but content with your present activity according to nature and with heroic truthfulness in every word you speak and utter, you will live a happy life.
ἔστι δὲ οὐδεὶς ὁ τοῦτο κωλῦσαι δυνάμενος.
And there is no one who can prevent this.