ἐπιστητέον
From LSJ
Σκηνὴ πᾶς ὁ βίος καὶ παίγνιον: ἢ μάθε παίζειν, τὴν σπουδὴν μεταθείς, ἢ φέρε τὰς ὀδύνας → All life is a stage and a play: either learn to play laying your gravity aside, or bear with life's pains.
English (LSJ)
one must know, Sch.D.T.p.316H., An.Ox.3.207.
Greek (Liddell-Scott)
ἐπιστητέον: ῥημ. ἐπίθ. τοῦ ἐπίσταμαι, δεῖ ἐπίστασθαι, Ἀνέκδ. Κραμήρου τ. 3. σ. 207. 14, κτλ.
