Whites, it must frankly be said, are not putting in a similar mass effort to reeducate themselves out of their racial ignorance. It is an aspect of their sense of superiority that the white people of America believe they have so little to learn. The reality of substantial investment to assist Negroes into the twentieth century, adjusting to Negro neighbors and genuine school integration, is still a nightmare for all too many white Americans. White America would have liked to believe that in the past ten years a mechanism had somehow been created that needed only orderly and smooth tending for the painless accomplishment of change. Yet this is precisely what has not been achieved.......These are the deepest causes for contemporary abrasions between the races. Loose and easy language about equality, resonant resolutions about brotherhood fall pleasantly on the ear, but for the Negro there is a credibility gap he cannot overlook. He remembers that with each modest advance the white population promptly raises the argument that the Negro has come far enough. Each step forward accents an ever present tendency to backlash.
- Martin Luther King, Jr. Where do We Go from Here, 1967