Πάντα ταῦτα ἐπείρασα ἐν τῇ σοφίᾳ: εἶπα Σοφισθήσομαι, καὶ αὐτὴ ἐμακρύνθη ἀπ' ἐμοῦ· κτλ. (Εcclesiastes 7:23f., LXX version) → I tried to give proof in wisdom of all those things; I said, I will be wise, but that wisdom was far from me ...
secretive: P. κρυψίνους (Xen.).
be reticent about: P. and V. σιγᾶν (acc.), σιωπᾶν (acc.), V. διασιωπᾶν (acc.).