"Political realism refuses to identify the moral aspirations of a particular nation with the moral laws that govern the universe. As it distinguishes between truth and opinion, so it distinguishes between truth and idolatry. All nations are tempted-and few have been able to resist the temptation for long-to clothe their own particular aspirations and actions in the moral purposes of the universe. To know that nations are subject to the moral law is one thing, while to pretend to know with certainty what is good and evil in the relations among nations is quite another. There is a world of difference between the belief that all nations stand under the judgment of God, inscrutable to the human mind, and the blasphemous conviction that God is always on one's side and that what one wills oneself cannot fail to be willed by God also.

"The lighthearted equation between a particular nationalism and the counsels of Providence is morally indefensible, for it is that very sin of pride against which the Greek tragedians and the Biblical prophets have warned rulers and ruled. That equation is also politically pernicious, for it is liable to engender the distortion in judgment which, in the blindness of crusading frenzy, destroys nations and civilizations-in the name of moral principle, ideal, or God himself.

"On the other hand, it is exactly the concept of interest defined in terms of power that saves us from both that moral excess and that political folly. For if we look at all nations, our own included, as political entities pursuing their respective interests defined in terms of power, we are able to do justice to all of them. And we are able to do justice to all of them in a dual sense: We are able to judge other nations as we judge our own and, having judged them in this fashion, we are then capable of pursuing policies that respect the interests of other nations, while protecting and promoting those of our own. Moderation in policy cannot fail to reflect the moderation of moral judgment."

--Hans Morgenthau, Politics Among Nations

or in the name of democratic capitalism.