εἰ δὲ τύχῃ τις ἔρδων, μελίφρον' αἰτίαν ῥοαῖσι Μοισᾶν ἐνέβαλε → if someone is successful in his deeds, he casts a cause for sweet thoughts into the streams of the Muses
adj.
Lacking: P. and V. ἐνδεής, P. ἐλλιπής. Necessary: P. and V. ἀναγκαῖος. Requisites: P. and V. τὰ δέοντα, τὰ ἀναγκαῖα. You have all the requisites for public life: Ar. ἔχεις ἅπαντα πρὸς πολιτείαν ἃ δεῖ (Eq. 219).