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.
The following winter the messengers of Nicias, on reaching Athens, gave the messages which they had been ordered to give by word of mouth, answering any questions that were asked, and delivered the letter. And the clerk of the city came before the Athenians and read them the letter, which ran as follows:
"What has been done before this, Athenians, you have been informed in many earlier letters; but now it is more than ever the time for you to learn in what condition we are and then to take counsel.