History of the Peloponnesian War

"For when you called us in to aid you at the first, the fear you pretended was only this: that if we neglected you, the Syracusians would subdue you, and we thereby should participate of the danger.

And it were unjust that the argument you would needs have to prevail then with us should now have no effect with yourselves, or that you should be jealous of the much strength we bring against the power of the Syracusians when much rather you should give the less ear unto them. We cannot so much as stay here without you;

and if becoming perfidious we should subdue these states, yet we are unable to hold them, both in respect of the length of the voyage and for want of means of guarding them, because they be great and provided after the manner of the continent. Whereas they, not lodged near you in a camp, but inhabiting near you in a city of greater power than this of ours, will be always watching their advantages against you;