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
P. and V. ἰᾶσθαι; (ι rare), ἐξιᾶσθαι, ἀκεῖσθαι, P. ἰατρεύειν, θεραπεύω.