Karl Dannenberg, Karl Marx: The Man and His Work… (1918)
“ The growth of the Socialist Industrial Union Movement signifies the ever quicker approaching destruction of capitalist production on the one hand, and the ever more efficient organization of Socialist production on the other. Upon the economic power vested within the Socialist Industrial Union, historical evolution has, consequently, conferred two duties: the first, to stand as the organized economic might behind the revolutionary objective of the proletariat—to serve as the buckler and sword of the social revolution ”
