John Howard Griffin said this quote
“ I learned a strange thing... that in a jumble of unintelligible talk, the word nigger leaps out with electric clarity. You always hear it and it always stings. And always it casts the person using it into a category of brute ignorance. I thought with some amusement that if these two women only knew what they were revealing about themselves to every Negro on that bus, they would have been outraged. ”