"If the progressing rationality of advanced industrial society tends to liquidate, as an “irrational rest,” the disturbing elements of Time and Memory, it also tends to liquidate the disturbing rationality contained in this irrational rest. Recognition and relation to the past as present counteracts the functionalization of thought by and in the established reality. It militates against the closing of the universe of discourse and behavior it renders possible the development of concepts which destabilize and transcend the closed universe by comprehending it as historical universe. Confronted with the given society as object of its reflection, critical thought becomes historical consciousness as such, it is essentially judgment. Far from necessitating an indifferent relativism, it searches in the real history of man for the criteria of truth and falsehood, progress and regression. The mediation of the past with the present discovers the factors which made the facts, which determined the war of life, which established the masters and the servants; it projects the limits and the alternatives. When this critical consciousness speaks, it speaks “le langage de la connaissance” (Roland Barthes) which breaks open a closed universe of discourse and its petrified structure. The key terms of this language are not hypnotic nouns which evoke endlessly the same frozen predicates. They rather allow of an open development; they even unfold their content in contradictory predicates. The Communist Manifesto provides a classical example. Here the two key terms, Bourgeoisie and Proletariat, each “govern” contrary predicates. The “bourgeoisie” is the subject of technical progress, liberation, conquest of nature, creation of social wealth, and of the perversion and destruction of these achievements. Similarly, the "proletariat” carries the attributes of total oppression and of the total defeat of oppression. Such dialectical relation of opposites in and by the proposition is rendered possible by the recognition of the subject as an historical agent whose identity constitutes itself in and against its historical practice, in and against its social reality. The discourse develops and states the conflict between the thing and its function, and this conflict finds linguistic expression in sentences which join contradictory predicates in a logical unit—conceptual counterpart of the objective reality. In contrast to all Orwellian language, the contradiction is demonstrated, made explicit, explained, and denounced."