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
quiet: P. and V. ἥσυχος, ἡσυχαῖος, P. ἡσύχιος.
modest: P. and V. αἰδοῖος (Plato), P. αἰσχυντηλός, αἰδήμων (Xen.).
secretive: P. κρυψίνους (Xen.), V. σιγηλός, σιωπηλός.