182 HISTORIC GROWTH OF MAN
work, and labor will no longer be drudgery. When labor is done with the right spirit, with the soul as well as the body, then it will not be exhausting; we shall accumulate as much vital force as we expend. Four hours a day, on the average, for physical labor will be widely different in its effects from the excessive toils of civilism. But more than this, the laws of interchange between the groups, and the responses of these to each other, will exalt labor to the rank of the noblest harmonies.
In another chapter we have already spoken of these responsive exchanges. They are a means by which the members secure a wide and systematic variety in their work and pleasures. They are not tied down to a monotonous round of unvaried toil. By thus calling all their faculties into activity they prevent that partial development of personal character which would result from using a few faculties incessantly in one vocation,
The members of society make temporary exchanges of employment or of position with those who are their thirds, fifths or octaves. For example, those in the department of food-culture may exchange with those who are in the department of luxuries; those in the groups of wealth may exchange with those in the groups of rulership. The mind is rested and harmonized by passing from the work or amusements of the groups of art to those in the group of science, or from those in the group of falnilism to those of religion, or from those of letters to those of culture. Such exchanges and harmonies were not possible in any of the societies of civilism.
E SYSTEMS OF MONEY. How shall we effect the