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.
As for the miseries which war entails, why should one by expressly stating all that can be said make a long harangue in the presence of those who know? For no one is either forced to make war through ignorance of what it is, or deterred from making it by fear, if he thinks he will get some advantage from it. What really happens is this, that to one side the gains appear greater than the terrors, while the other deliberately prefers to undergo the dangers rather than submit to a temporary disadvantage;
but if it should turn out that these two lines of action are both inopportune, each for the side which adopts it, then some profit may come from exhortations which advise a compromise.
And so with us at the present time, if we could be persuaded of the wisdom of this course it would be to our great advantage; for each of us began the war in the first place because we desired to promote our private interests. So now let us endeavour by setting forth our conflicting claims to become reconciled with each other; and then, if we do not after all succeed in securing, each of us, what is fair and just before we part, we shall go to war again.
"And yet we should recognise the fact that the subject of our conference will not, if we are wise, be our private interests merely, but rather the question whether we shall still be able to save Sicily as a whole, for it is against it, in my judgment, that the Athenians are plotting; and we must consider that we have an argument far more cogent to bring us together on these matters than my words, namely, the Athenians, who possess a military power greater than that of any other Hellenic state and are now at hand with a few ships watching for our mistakes, and under the lawful name of alliance are speciously trying to turn to their own advantage our natural hostility to them.