Finally, new left/old left compatibility on legal theory also arises from the nature of law. Those who contribute to new left jurisprudence ? legal workers, lawyers and lawschool teachers and students ? are working within the political-juridical-legal process. Those dedicated to anarchistic tactics ? the main obstacle to soUdarity with old left jurisprudence ? do not by and, THE THE HISTORICITY HISTORICITY OFOF MARX'S MARX'S CATEGORIES CATEGORIES InIn order order toto discuss discuss Rosenthal's Rosenthal's "The "The Escape Escape from from Hegel," Hegel," wewe firsthave firsthave toto appreciate appreciate the the full full significance significance ofof this this "escape." "escape." This This isis clarified clarified inin the the ini- ini-tial tial section , lógico†(Althusser, 2014:73). Su proble-ma es que se monta sobre una filosofÃa del lenguaje parti-cular, que concibe “el sujeto definido por sus necesidades, la mediación del lenguaje como signo, el signo en relación unÃvoca con la cosa, y la comunicación establecida entre dos sujetos por medio del lenguaje, un sistema de signos en , For Karl Marx and Friedrich Engels (2014), the history of all hitherto existing societies is the history of class struggles. Marx describes feudalism, capitalism, and the role internal social contradictions play in the historical process. Marx and Engels initiated the theory called Marxism and Althusser’s (1971) concept that the identity of a human being is constructed through ideology and , , .