θηρευτέον
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 hunt after, Plb.1.35.8.
Greek (Liddell-Scott)
θηρευτέον: ῥημ. ἐπίθ. τοῦ θηρεύω, δεῖ θηρεύειν, Πολύβ. 1. 35, 8.