For Carr, the contrast between utopians and realists was between ‘those who regard politics as a function of ethics and those who regard ethics as a function of politics’. In other words, can we direct society in benevolent directions, perhaps to a utopia, or do we take what we are given and try to rationalize this into some form of moral acceptability? In the context of International Relations, the utopian aspires to a world without war and where power is not the primary determinant of relationships. The realist is more sceptical. Broadly, the realist stresses the constraints in life; the utopian stresses the opportunities. At this level, they are not social theories but temperamental attitudes.