Not man or men but the struggling, oppressed class itself is the depository of historical knowledge. In Marx it appears as the last enslaved class, as the avenger that completes the task of liberation in the name of generations of the downtrodden. This conviction, which had a brief resurgence in the Spartacist group," has always been objectiontable to Social Democrats. Within three decades they managed virtually to erase the name of Blanqui, though it had been the rallying sound that had reverberated through the preceding century. Social Democracy thought fit to assign to the working class the role of the redeemer of future generations, in this way cutting the sinews of its greatest strength. This training made the working class forget both its hatred and its spirit of sacrifice, for both are nourished by the image of enslaved ancestors rather than that of liberated grandchildren.

The class struggle, which always remains in view for a historian schooled in Marx, is a struggle for the rough and material things, without which there is nothing fine and spiritual. Nevertheless these latter are present in the class struggle as something other than mere booty, which falls to the victor. They are present as confidence, as courage, as humor, as cunning, as steadfastness in this struggle, and they reach far back into the mists of time. They will, ever and anon, call every victory which has ever been won by the rulers into question.