καὶ τὸ σιγᾶν πολλάκις ἐστὶ σοφώτατον ἀνθρώπῳ νοῆσαι → and silence is often the wisest thing for a man to heed, and often is man's best wisdom to be silent, and often keeping silent is the wisest thing for a man to heed
adj.
P. and V. ἄγριος, ὠμός, σχέτλιος, πικρός, σκληρός, τραχύς, Ar. and P. χαλεπός, V. ὠμόφρων. Pitiless: P. ἀπαραίτητος, V. νηλής, δυσπαραίτητος; see fierce, cruel.