History of the Peloponnesian War

"With regard to events of early date, and of the greatest importance, such was the part we thought right to act; though afterwards we became your enemies. But it is you that are to blame for that; for on our requesting an alliance with you, when the Thebans had used violence towards us, you rejected our suit, and told us to apply to the Athenians, since they were near to us, whereas you lived far away from us.

In the war, however, you neither suffered, nor would have suffered, any improper treatment from us.

But if we would not revolt from the Athenians at your bidding, we did no wrong in that; for it was they who assisted us against the Thebans, when you refused; and to give them up would not then have been honourable—especially as we had taken them for allies after receiving good from them, and at our own request, and had shared the rights of citizenship with them—but it was only reasonable that we should heartily obey their commands.

And as to the measures in which either of you take the lead of your allies, it is not those who follow that are to blame, if you have ever done any thing wrong, but those who lead them on to what is not right.