“ A prejudice is a private thing, and even its tolerance is misanthropic. ”
 G. K. Chesterton, What's Wrong with the World (1910). copy citation

Context

“that prejudices are divergent, whereas creeds are always in collision. Believers bump into each other; whereas bigots keep out of each other’s way. A creed is a collective thing, and even its sins are sociable. A prejudice is a private thing, and even its tolerance is misanthropic. So it is with our existing divisions. They keep out of each other’s way; the Tory paper and the Radical paper do not answer each other; they ignore each other. Genuine controversy, fair cut and thrust before a common audience, has become in our special epoch very rare.” source