Internationalism No. 84, February 2026 Page 9 From the series Principles of Marxism The German Ideology arose from a party necessity: Marx and Engels’ struggle to guide the Communist League; in turn, the theses of The German Ideology laid the foundation, albeit indirectly, for Lenin’s conception of the party and the reflection on the science-party linked to it. Are there other theoretical-political battles in which we can trace that imprint? We limit the discussion here to three examples: the ideologies of State capitalism in the century of imperialism, the dialectic of unity and scission in world market relations, and the concept of external collision in the theory of international relations. [...] In the editorial The Political Ideas of Economic Dominance [September 1977], Arrigo Cervetto challenged one of the most foolish criticisms of Marxism according to which Marx did not want, or could not have wanted, to acco...