“So Marxism, for all its plurality, has been marked by the interplay of theoretical and political preoccupations. It has also been punctuated by widely perceived moments of internal crisis – starting in the late 1890s with the publication of Eduard Bernstein’s Preconditions of Socialism, but again during the First World War, in the 1930s, and at the end of the 1970s. Indeed, one of us has written, “Marxism is constitutively, from Marx’s contribution onwards, . . . crisis theory” (Kouvelakis 2005, 25). Perhaps there are two main reasons for this succession of crises. First, Marxism is inherently tied to capitalism, at once the object of the critique of political economy and an enemy to be vanquished. But since, as Marx and Engels showed in the Communist Manifesto, it is also a dynamic system constantly transforming itself, Marxism constantly falls victim to the anxiety that it is not adequate to its Protean antagonist, that it must run to keep up with the metamorphoses of bourgeois society. This is then connected to a second source of anxiety, namely that capitalism continues to exist, and that therefore the communist project remains unrealized, two centuries now after Marx’s birth.” PhilosophySocialismMarxismMarxPolitical TheoryEngelsRoutledge Author:Alex Callinicos Stathis Kouvelakis Lucia Pradella