ἀντοφθαλμέω
From LSJ
Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη. Τὸ δὲ ἡττᾶσθαι αὐτὸν ὑφ' ἑαυτοῦ πάντων αἴσχιστόν τε ἅμα καὶ κάκιστον. → Τo conquer yourself is the first and best victory of all, while to be conquered by yourself is of all the most shameful as well as evil
English (LSJ)
A look in the face, meet face to face, ἀ. κατὰ πρόσωπον Plb.18.46.12: hence, defy, withstand, τινί and πρός τινα, Id.1.17.3, 2.24.1, etc., cf. LXXWi.12.14; ἀ τῷ ἀνέμῳ, of a ship, Act.Ap.27.15; πάθεσι Longin.34.4.