Essays in Historical Materialism (Paperback) (ISBN-13: 9782491182373)

"It has shown that man makes his history not in order to march along a line of predetermined progress, and not because he must obey the laws of some abstract (metaphysical, Labriola calls it) evolution. He does so in the endeavour to satisfy his own needs, and it is for science to explain how the various methods of satisfying these needs influence man's social relations and spiritual activity."-George Plekhanov