κυβερνητέον
From LSJ
ὁδὸς ἄνω κάτω μία καὶ ὡυτή → the road up and the road down is one and the same, the upward path and the downward path are the same
English (LSJ)
one must direct, Pl. Sis.389d.
Greek (Liddell-Scott)
κυβερνητέον: ῥημ. ἐπίθ. τοῦ κυβερνῶ, δεῖ κυβερνᾶν, Πλάτ. Σίσυφ. 389D.
Dutch (Woordenboekgrieks.nl)
κυβερνητέον, adj. verb. van κυβερνάω, men moet sturen.