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
subs.
Excuse: P. and V. πρόφασις, ἡ. Pardon: P. and V. συγγνώμη, ἡ. Admit of extenuation: P. and V. συγγνώμην ἔχειν.