McClellan, a representative Western Marxist scholar, mentioned in a panel discussion at Renmin University of China that Hegel’s spirit of modernity was revived after the First World War, and diffused in early Western Marxism and the early theoretical exploration and construction by Habermas. The modern discourse of “democracy” was spread and circulated along such a rational path. Starting from Hegel’s question about “democracy,” the democratic theories of Lukács and other early Western Marxist thinkers was investigated. Although Hegel’s rational philosophy factors were removed, it eventually became a utopian idea because of its separation from practice. The theory reflected how Habermas tried to transcend and neutralize the two traditions by reshaping rational democracy, but it could not really be put into practice in the Western world because it was limited by historical idealism. It is important and valuable to delve into the power of truth in Marxist democratic thought, to highlight its fundamental attributes of authenticity and affinity to the people, as well as its transcendence and critique of Western democratic thought, and to outline the remarkable “adventure” of democracy in the intersection of ideological history and historical thought.