If a society insists that warfare is the major occupation for the male sex, it is therefore insisting that all male children display bravery and pugnacity. Even if the insistence upon the differential bravery of men and women is not made articulate, the difference in occupation makes this point implicitly. When, however, a society goes further and defines men as brave and women as timorous, when men are forbidden to show fear and women are indulged in the most flagrant display of fear, a more explicit element enters in. Originally two variations of human temperament, a hatred of fear or willingness to display fear, they have been socially translated into inalienable aspects of the personalities of the two sexes. And to that defined sex-personality every child will be educated, if a boy, to suppress fear, if a girl, to show it.