"If a revolution is to be victoriously carried through, it will require a concentrated power, a dictatorship at its head. Cromwell's dictatorship was necessary in order to establish the supremacy of the English bourgeoisie; the terrorism of the Paris Commune and of the Committee of Public Safety alone succeeded in breaking the resistance of the feudal lords on French soil. Without the dictatorship of the proletariat which is concentrated in the big cities, the bourgeois reaction will not be done away with."