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