Who said "War is the failure of understanding between peoples."?

This quote is attributed to Elie Metchnikoff.

War is the failure of understanding between peoples. - Elie Metchnikoff

"War is the failure of understanding between peoples."

Elie Metchnikoff War

Immunologist Russian 1845–1916

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"Some battles are worth fighting."

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"War teaches us the value of peace."