History of the Peloponnesian War
Thucydides
Thucydides. History of the Peloponnesian War. Crawley, Richard, translator. London and Toronto: J. M. Dent and Sons Ltd.; New York: E. P. Dutton and Co., 1914.
Five days after this a second assembly was held, to consider the speediest means of equipping the ships, and to vote whatever else might be required by the generals for the expedition;
and Nicias, who had been chosen to the command against his will, and who thought that the state was not well advised, but upon a slight and specious pretext was aspiring to the conquest of the whole of Sicily, a great matter to achieve, came forward in the hope of diverting the Athenians from the enterprise, and gave them the following counsel:—
‘Although this assembly was convened to consider the preparations to be made for sailing to Sicily, I think, notwithstanding, that we have still this question to examine, whether it be better to send out the ships at all, and that we ought not to give so little consideration to a matter of such moment, or let ourselves be persuaded by foreigners into undertaking a war with which we have nothing to do.