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 concerning the Persian War and all the other events of which you have personal knowledge, we needs must speak, even though it will be rather irksome to mention them, since they are always being paraded. For when we were performing those deeds the risk was taken for a common benefit, and since you got a share of the actual results of that benefit, we should not be wholly deprived of the credit, if there is any benefit in that.
And our aim in the recital of the facts will be, not so much to deprecate censure, as to show by evidence with what sort of city you will be involved in war if you are not well advised.
"For we affirm that at Marathon we alone bore the first brunt of the Barbarian's attack, and that when he came again, not being able to defend ourselves by land, we embarked in a body on our ships and joined in the sea-fight at Salamis. This prevented his sailing against you city by city and ravaging the Peloponnesus, for you would have been unable to aid one another against a fleet so numerous.
And the weightiest testimony to the truth of what we say was afforded by the enemy himself; for when his fleet was defeated, as if aware that his power was no longer a match for that of the Hellenes, he hastily withdrew with the greater part of his army.