See in Aron's philosophy of history the attempt to establish an idea of objectivity conforming to the practice rather than to the theory of Max Weber and to establish the plurality of concrete interpretations of history of the German thinker, even in the philosophical field. Aron tries to correct Weber's individuality and subjectivity as the logic of human conduct; but continues Weber's anti-Marxist polemics. In reality history and philosophy,philosophy and politics, rediscover in historical materialism their dialectic tension. The same may be said for the plurality of interpretations that Marxism lacerates contemporary conscience.That the conscience of the community, whether national or international, is prey to laceration may only be explained by Marxism which fundamentally produced this same laceration.