“The general laws of migration hold that the greater the obstacles and the farther the distance traveled, the more ambitious the migrants. “It is the higher status segments of a population which are most residentially mobile,” the sociologists Karl and Alma Taeuber wrote in a 1965 analysis of census data on the migrants, published the same year as the Moynihan Report. “As the distance of migration increases,” wrote the migration scholar Everett Lee, “the migrants become an increasingly superior group.” Any migration takes some measure of energy, planning, and forethought. It requires not only the desire for something better but the willingness to act on that desire to achieve it. Thus the people who undertake such a journey are more likely to be either among the better educated of their homes of origin or those most motivated to make it in the New World, researchers have found. “Migrants who overcome a considerable set of intervening obstacles do so for compelling reasons, and such migrations are not taken lightly,” Lee wrote. “Intervening obstacles serve to weed out some of the weak or the incapable.” The”
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Isabel Wilkerson,
The Warmth of Other Suns: The Epic Story of America's Great Migration