τό γε μὴν ἀόργητον ἀνδρός ἐστι σοφοῦ → and to be able also to subdue anger is the part of a wise man
silent: V. σιγηλός, σιωπηλός.
secretive: P. κρυψίνους (Xen.).
be reticent about: P. and V. σιγᾶν (acc.), σιωπᾶν (acc.), V. διασιωπᾶν (acc.).