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When a man fails to understand something he is conscious of a discord, and seeks for the cause of it not in himself, as he should, but outside himself - hence the war with what he does not understand.

"Letters Of Anton Chekhov To His Family And Friends With Biographical Sketch". Book by Anton Chekhov, 1920.
When a man fails to understand something he is conscious of a discord, and seeks for the cause of it not in himself, as he should, but outside himself - hence the war with what he does not understand.