" Certain it is,” he predicted in his book The Land of Gold, published in 1855, “that the greater the diversity of colors and qualities of men, the greater will be the strife and conflict of feeling.” Helper insisted that America should be a homogeneous white society. Comparing the entry of the Chinese in the West to the existence of blacks in the East, he protested: “Our population was already too heterogeneous before the Chinese came. I should not wonder at all, if the copper of the Pacific yet becomes as great a subject of discord and dissension as the ebony of the Atlantic. "

― Ronald Takaki , Strangers from a Different Shore: A History of Asian Americans