This is copied from Scott Horton, but it follows up on what I've written earlier.
If it does not do justice, what is the government but a great criminal enterprise? For what are gangs of criminals but petty little governments? The pack is a group which follows the orders of its leader according to a social compact of sorts, sharing the spoils along the rules upon which they agree. Through a process of gradual accretion, the gang may acquire bodies and territory, establish itself in some place, and soon be possessed of all the attributes of statehood—then it may be known as a state, acquiring this title not by being any less avaricious but rather by having achieved impunity. Alexander the Great’s conversation with a pirate he had captured reflects this well. The king asked what possessed him to infest the sea as he did, and the pirate replied: “No differently from you when you pursue your crimes in the world. I act with a small ship, so I am called a pirate. You command a fleet and are called emperor.” (Bold enhancement mine)
–Augustine of Hippo, De civitate dei contra paganos lib iv, capp iii- iv (ca. 410)(S.H. transl.) in vol. 2 of the Loeb Classical Library edition, pp. 12, 16.