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
Φυλή, ἡ.
Of Phyle, adj.: Φυλάσιος (Ar., Ach. 1028).