Hence we ask at first only: how does the old or the new system serve the progress of mankind? What this human progress means is clearly interpreted by the history of five thousand years of civilization. It is the history of the growing differentiation of human demands and fulfilments. Every new stage in the culture of mankind developed new desires and new longings from nature and from society, but it also brought with it new means of satisfying the longings and fulfilling the desires. The two belong most intimately together. The new means of fulfilment stimulate new desires of intellect and emotion and will, and the new desires lead to further means of their satisfaction. Thus there is an incessant automatic enrichment, an endless differentiation, a thousand new needs on the height of civilization where the primitive race found a few elementary demands, and a thousand new schemes of material technique and of social, institutional life where the lower culture found all it needed with simple devices. It is an unfolding not dissimilar to that which the plants and the animals have shown in their organic life in the long periods of natural evolution. The development from the infusors to the monkeys was such a steady increase in the manifoldness of functions. The butterfly is as well adjusted to its life conditions and as well off as the fish, and the fish as well off as the elephant, and in the evolution of economic civilization as in that of the kingdom of animals the advance does not involve an increase of joy. Pain results from a lack of adjustment, but not from a scarcity of functions. Hence if we strive for progress alone, we are moved not by the hope for greater joy, but by an enthusiastic belief in the value of progress and development itself. Does a socialistic order secure a more forceful, a more spontaneous, a more many-sided, or even a more harmonious growing of new demands and of new means for fulfilment than the capitalistic system which holds us all to-day?