Anger is precious. A silverback uses anger to maintain order and warn his troops of danger. When my father beat his chest, it was to say, Beware, listen, I am in charge. I am angry to protect you, because that is what I was born to do. Here in my domain there is no one to protect.
Katherine Applegate (2012). “The One and Only Ivan”, p.18, HarperCollins UK
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