This chapter explores whether a socialist system should be established by way of gradual reform or revolutionary change. The origins of Karl Marx’s radically revolutionary worldview were explored by Tucker in a 1961 book which showed that Marx had chosen revolution and communism even before commencing work on his materialistic conception of history. The crucial role of the concept of revolution is in Marx’s approach necessitates deciding if the opinions and P. Struve’s overall line of reasoning are acceptable. Reforms may take the form of a preparatory process for a revolutionary change, but a revolution proper requires the instant transfer of the right to cash surpluses from capitalists to workers. Marx’s view of history does have a deterministic colouring, deriving from his belief that the historical course works in the direction of the supersession of the capital-labour opposition and the consequential liberation of workers from their subaltern condition.