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
commonly: P. ὡς ἐπὶ τὸ πολύ.
as is currently reported: V. ὥσπερ ἡ φάτις κρατεῖ (Soph., Ajax 978).