Since its beginnings, the proletariat’s struggle in
defence of its own interests has carried within itself the
perspective of ultimately destroying capitalism and establishing
communism. But the proletariat does not pursue the final goal of
its struggle out of pure idealism, guided by some divine
inspiration. It is led to undertake its communist task because the
material conditions within which its immediate struggle develops,
force the class to do so since any other method of struggle can
only lead to disaster.