Well-established democracies do not make war on each other. — Rudolph Rummel

"Libertarian states have no violence between themselves. The more libertarian two states, the less their mutual violence. The more libertarian a state, the less its foreign violence."

"Quite simply, a free press promotes peace; creating a universally free press would promote universal peace. The bridge between the two is democracy."

"The less freedom people have the more violence, the more freedom the less violence. I put this here as the Power Principle: power kills, absolute power kills absolutely."

"In sum, theoretical and empirical research establishes that democratic civil liberties and political rights promote nonviolence and is a path to a warless world. The clearest evidence of this is that there has never been a war between well-established democracies, while numerous wars have occurred between all other political systems;…"

"Recall that democratic regimes in an exchange society are at one corner of the political triangle while totalitarian regimes with the coercive society they have constructed are at another. They therefore are at opposing ends of one side of the triangle, which is a continuum ranging from Freedom to Power."

"The Polarity Principle:" The more government, the more violence. By ‘more government’ is meant more centralization of government power, more intervention in personal, social, and economic affairs and activities, more limits on political criticism and competition, and more narrowing of electoral choices. In other words, by ‘more government’ is meant less freedom, less civil liberties, political rights, and economic freedom."