Though they seem to be at opposite poles, fanatics of all kinds are actually crowded together at one end. It is the fanatic and the moderate who are poles apart and never meet. The fanatics of various hues eye each other with suspicion and are ready to fly at each other's throats. But they are neighbours and almost of one family. They hate each other with the hate of brothers. They are as far apart and close together as Saul and Paul. And it is easier for a fanatic Communist to be converted to fascism, chauvinism, or Catholicism than to become a sober liberal.

Eric Hoffer