φρόνει βεβὼς… ἐπὶ ξυροῦ τύχης

From LSJ

γνοίης ὅσσον ὄνων κρέσσονες ἡμίονοι → you know how much better are donkeys from mules

Source

English > Greek (Woodhouse Quotes Reversed)

bethink you that you are on the brink of doom