Grant

“It is often said and written that the main point in Marx's theory is the class struggle. But this is wrong. And this wrong notion very often results in an opportunist distortion of Marxism and its falsification in a spirit acceptable to the bourgeoisie. For the theory of the class struggle was created not by Marx, but by the bourgeoisie before Marx, and, generally speaking, it is acceptable to the bourgeoisie. Those who recognize only the class struggle are not yet Marxists; they may be found to be still within the bounds of bourgeois thinking and bourgeois politics. To confine Marxism to the theory of the class struggle means curtailing Marxism, distorting it, reducing it to something acceptable to the bourgeoisie. Only he is a Marxist who extends the recognition of the class struggle to the recognition of the dictatorship of the proletariat. That is what constitutes the most profound distinction between the Marxist and the ordinary petty (as well as big) bourgeois. This is the touchstone on which the real understanding and recognition of Marxism should be tested.”
― Vladimir Lenin, Acerca de la frase revolucionaria