History of the Peloponnesian War

"And yet, if we are prudent, we ought, each of us in behalf of his own state, to call in allies and incur dangers only when we are seeking to win what does not belong to us and not when we imperil what is already ours; and we should remember that faction is the chief cause of ruin to states and indeed to Sicily, seeing that we her inhabitants, although we are all being plotted against, are disunited, each city by itself.

Recognizing these facts, we must be reconciled with each other, citizen with citizen and state with state, and join in a common effort to save all Sicily. And let no one imagine that only the Dorians among us are enemies of the Athenians, while the Chalcidians, because of their kinship with the lonians, are safe.

For it is not through hatred of one of the two races into which we are divided that they will attack us, but because they covet the good things of Sicily which we possess in common. They have just made this clear by their response to the appeal which the people of Chalcidic stock made to them;[*](cf. 3.86.3.)

for to those who have never given them aid according to the terms of their alliance they of their own accord have fulfilled an ally's obligations with a zeal exceeding their compact. That the Athenians entertain these designs of aggrandisement is quite pardonable;

and I have no word of blame for those who wish to rule, but only for those who are too ready to submit; for it is an instinct of man's nature always to rule those who yield, but to guard against those who are ready to attack.