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 in contests of that kind the city bestows the prizes upon others, while she herself undergoes all the risks. And you are yourselves to blame, for your management of these contests is wrong.
It is your wont to be spectators of words and hearers of deeds, forming your judgment of future enterprises according as able speakers represent them to be feasible, but as regards accomplished facts, not counting what has been done more credible, because you have seen it, than what you have heard, you are swayed in judgment by those who have made an eloquent invective.
You are adepts not only at being deceived by novel proposals but also at refusing to follow approved advice, slaves as you are of each new paradox and scorners of what is familiar.
Each of you wishes above all to be an orator himself, or, failing that, to vie with those dealers in paradox by seeming not to lag behind them in wit but to applaud a smart saying before it is out of the speaker's mouth; you are as quick to forestall what is said as you are slow to foresee what will come of it.