ἀπορραπιστέον
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 one must reject, Eust.310.23.
Greek (Liddell-Scott)
ἀπορραπιστέον: ῥηματ. ἐπίθ., πρέπει τις νὰ ἀπορρίψῃ, Εὐστ. 310. 23.