Note 245 — Chapter XLI · BATTLE OF SALAMIS. — RETREAT OF XERXES.
Reading edition
Herodot. viii, 61, 62. Σὺ εἰ μενέεις αὐτοῦ, καὶ μένων ἔσεαι ἀνὴρ ἀγαθός· εἰ δὲ μὴ, ἀνατρέψεις τὴν Ἑλλάδα.
All the best commentators treat this as an elliptical phrase,—some such words as σώσεις τὴν Ἑλλάδα or καλῶς ἂν ἔχοι, being understood after ἀγαθός. I adopt their construction, not without doubts whether it be the true one.