History of the Peloponnesian War

"And let no man object that we be solicitous for those that are nothing to us; for as long as you be preserved and able to make head against the Syracusians, we shall be the less annoyed by their sending of forces to the Peloponnesians.

And in this point you are very much unto us. For the same reason it is meet also that we replant the Leontines; not to subject them, as their kindred in Euboea, but to make them as puissant as we can, that, being near, they may from their own territory weaken the Syracusians in our behalf.

For as for our wars at home, we are a match for our enemies without their help; and the Chalcidean (whom having made a slave yonder, the Syracusian said, we absurdly attempt to vindicate into liberty here) is most beneficial to us there without arms, paying money only; but the Leontines, and our other friends here, are the most profitable to us when they are most in liberty.

"Now to a tyrant or city that reigneth, nothing can be thought absurd if profitable, nor any man a friend that may not be trusted to. Friend or enemy he must be, according to the several occasions. But here it is for our benefit not to weaken our friends, but by our friends' strength to weaken our enemies. This you must needs believe, inasmuch as yonder also we so command over our confederates as every of them may be most useful to us: