ποιητέον

From LSJ

ἐπὶ ξυροῦ γὰρ ἀκμῆς ἔχεται ἡμῖν τὰ πρήγματα → our affairs are balanced on a razor's edge, our affairs are set upon the razor's edge

Source

German (Pape)

[Seite 648] adj. verb. von ποιέω, man muß machen, thun, Her. 1, 191 Plat. conv. 217 a u. sonst.