"Gross inequalities in skills and achievements have been the rule, not the exception, on every inhabited continent and for centuries on end. Yet our laws and government policies act as if any significant statistical difference between racial or ethnic groups in employment or income can only be a result of their being treated differently by others.
Nor is this simply an opinion. Businesses have been sued by the government when the representation of different groups among their employees differs substantially from their proportions in the population at large. But, no matter how the human race is broken down into its components -- whether by race, sex, geographic region or whatever -- glaring disparities in achievements have been the rule, not the exception."