[Republicans in Hess's youth] represented the only strong anti-imperialist political position. Anti-imperialist? Republicans? Uh-huh. But Republicans were not smart enough to call it that. They let it be labeled isolationism, as though they wanted the United States to sneak off the world stage, slam the doors, and bolt the windows. The underlying Republican argument, that we should trade with everyone but not interfere with or intervene in their internal politics, was lost behind that unattractive label.

As quoted by Jeff Riggenbach, "Karl Hess and the Death of Politics," (text) The Libertarian Tradition (6 May 2010).