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
craftily: Ar. and V. δόλῳ, V. σὺν δόλῳ, ἐν δόλῳ, P. ἐξ ἐπιβουλῆς; see craftily.
