Politically speaking, tribal nationalism always insists that its own people is surrounded by "a world of enemies", "one against all", that a fundmental difference exists between this people and all others. It claims its people to be unique, individual, incompatible with all others, and denies theoretically the very possibility of a common mankind long before it is used to destroy the humanity of man.
- Hannah Arendt, from her book The Origins Of Totalitarianism p.227