"Teaching the child to treat boundaries seriously teaches the child to respect the rights and needs of others. Thinking of another's needs creates empathy."

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In brief, nationalism is a theory of political legitimacy, which requires the ethnic boundaries should not be cut across political ones, and, in particular, that ethnic boundaries within a given state a contingency already formally excluded by the principle in its general formulation should not separate the power holders from the rest.

— Ernest Gellner