The Random House Unabridged Dictionary defines a cosmopolitan as "a person who is free from local, provincial or national bias or attachment; a citizen of the world". The Oxford English Dictionary defines a cosmopolitan as "at home throughout the world or in many spheres of interest". To what degree does cosmopolitanism, a somewhat theoretical ideal, constitute a serious option in the 21st century? And to what degree might it trump the more primordial type of loyalty that is associated with either the nation or the nation-state?