ἀποληπτέον
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 admit, accept, κριτήριον τὴν φαντασίαν (nisi leg. -λειπτέον, cf. ἀπολείπω 1.4) S.E.M.7.388.
Greek (Liddell-Scott)
ἀποληπτέον: ῥημ. ἐπίθ., πρέπει τις νὰ παραδεχθῇ, Σέξτ. Ἐμπ. π. Μ. 7. 388.