History of the Peloponnesian War

Men of Boeotia, it should not have even entered the thoughts of any of us your commanders, that it would not be right to engage with the Athenians, in case we found them no longer in Boeotia. For it is Boeotia that they intend to ravage, after coming from the border territory, and building a fortress in it: and so they are surely our enemies, wherever they may be found, and from whatever country they may have come to act as enemies would.