History of the Peloponnesian War

Thucydides

Thucydides, Vol. 1-4. Smith, Charles Foster, translator. London and Cambridge, MA: Heinemann and Harvard University Press, 1919-1923.

But if we had acted as others did, and through fear of losing our territory had gone over to the Persians earlier in the war, or afterwards had lacked the courage to embark on our ships, in the conviction that we were already ruined, it would from that moment have been useless for you, with your inadequate fleet, to fight at sea, but the Persian's plans would have moved on quietly just as he wished.

"Considering, then, Lacedaemonians, the zeal and sagacity of judgment which we displayed at that time, do we deserve to be regarded with this excessive jealousy by the Hellenes just on account of the empire we possess ?