But in truth, America is the last, best hope of freedom. If we can't make freedom and democracy work in America, then it can't be made to work any place in the world.
Source, in full
Address before the annual convention of the National Association for the Advancement of Colored People, Detroit, Michigan, June 26, 1957, as quoted in Walter P Reuther: Selected Papers (1961), by Henry M. Christman, p. 203