Authoritarian Socialism Has Failed Almost Everywhere, But You Will
Find Not A Single Marxist Who Will Say It Has Failed Because It Was
Wrong Or Impractical.
Authoritarian socialism has failed almost everywhere, but you will
find not a single Marxist who will say it has failed because it was
wrong or impractical. He will say is has failed because nobody went
far enough with it. So failure never proves that a myth is wrong.
-- Jean-Francois Revel