 Finally in the 19th century the idea of the aristocratic military genius was replaced by the Prussian reliance upon “average men succeeding by superior education, organization and experience.” 

Chapter three discusses the military mind and military professional ethic.He notes misconceptions regarding the military mind and seeks "to elaborate the professional military ethic with respect to (1) basic values and perspectives, (2) national military policy, (3) the relation of the military to the state.