Thrasymachus (459-400 BC)

The different forms of government make law democratical, aristocratical, tyrannical, with a view to their several interests; and these laws, which are made by them for their own interests, are the justice which they deliver to subjects, and him who transgresses them they punish as a breaker of the law, and unjust.  And that is what I mean when I say that in all states there is the same principle of justice, which is the interest of the government; and as the government must be supposed to have power, the only reasonable conclusion as, that everywhere there is one principle of justice, which is the interest of the stronger.