“There are those among the white race and those among the black race who assert, with a good deal of earnestness, that there is no difference between the white man and the black man in this country. This sounds very pleasant and tickles the fancy; but, when the test of hard, cold logic is applied to it, it must be acknowledged that there is a difference, – not an inherent one, not a racial one, but a difference growing out of unequal opportunities in the past.”