"In relations between the states ... the interests of the country should be correlated with the interests of other countries, and compromise is to be found when resolving the most complex issues."

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Revenge is the thinking man's reflex, a complex blend of action and consistency no other animal species has so far succeeded in evolving. Evolutionary speaking, the practice of taking revenge has shown itself to the so effective that only the most vengeful of us have survived.

— Jo Nesbo