  In his main work on international relations, The Twenty Years’ Crisis, first published in July 1939, Edward Hallett Carr (1892–1982) attacks the idealist position, which he describes as “utopianism.” He characterizes this position as encompassing faith in reason, confidence in progress, a sense of moral rectitude, and a belief in an underlying harmony of interests. According to the idealists, war is an aberration in the course of normal life and the way to prevent it is to educate people for peace, and to build systems of collective security such as the League of Nations or today’s United Nations. Carr challenges idealism by questioning its claim to moral universalism and its idea of the harmony of interests. He declares that “morality can only be relative, not universal” (19), and states that the doctrine of the harmony of interests is invoked by privileged groups “to justify and maintain their dominant position” (75).