Men are hauling a log. Each of them expresses his opinion as to how and where to haul it. They haul the log away, and it happens that this is done as one of them said. He ordered it. There we have command and power in their primary form. The man who worked most with his hands could not think so much about what he was doing, or reflect on or command what would result from the common activity; while the man who commanded more would evidently work less with his hands on account of his greater verbal activity.

When some larger concourse of men direct their activity to a common aim there is a yet sharper division of those who, because their activity is given to directing and commanding, take less part in the direct work.