"Sooner or later, even the most intellectual discussion came down to men’s supposedly superior strength as a justification for inequality, whether the person arguing regretted or celebrated it. What no one seemed to explore, however, was the inadequacy of physical strength as a way of explaining oppression in other cases. Men of European origin hadn’t ruled in South Africa because they were stronger than African men, and blacks hadn’t been kept in slavery or bad jobs in the United States because whites had more muscles. On the contrary, males of the “wrong” class or color were often confined to laboring positions precisely because of their supposedly greater strength, just as the lower pay females received was often rationalized by their supposedly lesser strength. Oppression has no logic — just a self-fulfilling prophecy, justified by a self-perpetuating system."