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
Colchus,¹³ a, um, de Colchide, de Médée [originaire de la Colchide] : venena Colcha Hor. O. 2, 13, 8, poisons de Colchide.