I have no more faith in positive militant ideals; they can so seldom be carried out without thousands of human beings getting maimed or imprisoned. Phrases like “I will purge this nation,” “I will clean up this city,” terrify and disgust me. They might not have mattered so much when the world was emptier: they are horrifying now, when one nation is mixed up with another, when one city cannot be organically separated from its neighbours.

E. M. Forster (1879-1970) English novelist, essayist, critic, librettist [Edward Morgan Forster]
“The Unsung Virtue of Tolerance,” radio broadcast (Jul 1941)
    (Source)

Published as "Tolerance," Two Cheers for Democracy (1951).