Value-form
The Western Left academics are nowadays very happy to talk about "varieties of capitalism", but talking about "varieties of socialism" remains almost an absolute "no-no". Most Marxists continue to believe in "only one" (Marxian) socialism: either that, or nothing at all. "Either" a society or movement conforms to the true concept of socialism, "or" it does not; and if it does not, it "cannot be" socialism. However, precisely "because" there are many different Marxist beliefs about socialism, Marxists cannot agree among themselves whether Soviet-type societies were socialist, capitalist, or something else. Some countries meet with the moral expectations which Marxists have, and others do not.Originally Marx and Engels themselves had heckled the advocates of "true socialism", but later Friedrich Engels and Karl Kautsky promoted Marxist socialism as the one and true "scientific socialism" within the Socialist International. When he was 43 years old, Lenin stated: "The Marxist doctrine is omnipotent because it is true". Lenin's Communist International (a deliberate split with the social democrats) adopted Marxist socialism as its official political doctrine.
Prison Notebooks
For the majority of Marxists, truth was truth no matter when and where it is known, and scientific knowledge (which included Marxism) accumulated historically as the advance of truth in this everyday sense. On this view, Marxism could not be said to not belong to the illusory realm of the superstructure because it is a science. In contrast, Gramsci believed Marxism was "true" in the socially pragmatic sense, in that by articulating the class consciousness of the proletariat, it expressed the "truth" of its times better than any other theory. This anti-scientistic and anti-positivist stance was indebted to the influence of Benedetto Croce. However, it should be underlined that Gramsci's was an "absolute historicism" that broke with the Hegelian and idealist tenor of Croce's thinking and its tendency to secure a metaphysical synthesis in historical "destiny". Though Gramsci repudiates the charge, his historical account of truth has been criticised as a form of relativism.