Costanzo Preve (14 April 1943 – 23 November 2013) was an Italian philosopher and a political theoretician. Preve is widely considered one of the most important anti-capitalist European thinkers and a renowned expert in the history of Marxism. His thought is based on the Ancient Greek and idealistic tradition philosophy under the influence of Johann Gottlieb Fichte, Georg Wilhelm Friedrich Hegel and Karl Marx. He is author of many essays and volumes about philosophical interpretation, communitarianism and universalism. Born in Valenza, Preve studied philosophy, political science and ancient and modern Greek in Turin, Paris and Athens. He worked as a high school teacher from 1967 to 2002 and was engaged first in the Italian Communist Party (PCI). He then got close to Proletarian Democracy, a party created in 1975 which opposed to the historic compromise between the PCI and the Christian Democracy. After the dissolving of the PCI following the 1989 fall of the Berlin Wall, Preve undertook a critical review of his own positions held in the precedent decades. He gave lectures for and took part in some of the cultural activities of the Anti-Imperialist Camp, a union of international leftist anti-imperialist activists who have received much attention from the media because of their critical stand against American imperialism and Zionism. Since 2005, he wrote for geopolitical journal Eurasia. Preve was initially influenced by Marxist philosopher Louis Althusser before turning himself towards Georg Lukács. He rejected the important workerism current (or autonomist Marxism) during the 1960–1970s. In the 1990s, Preve returned to Althusser and criticized economism and orthodox Marxism based on a teleological philosophy of history inspired by Hegel. As did Althusser in his latter work on "random materialism" (matérialisme aléatoire), Preve insisted on the place of contingency in history and considers the class contrast between the bourgeoisie and the proletariat to be a historical passing form specific to a certain period of the capitalist mode of production.