From www.americamagazine.org:

Homo homini lupus. “Man is a wolf to man.” Over 2000 years ago, the Romans coined the phrase that perhaps best explains humankind’s ambivalent mix of fear, animosity and admiration toward wolves. Variations of the “humans are like wolves” or “wolves are like humans” narrative have proliferated ever since, from German U-boat commanders who embraced the name “wolf pack” for themselves to that fantastically implausible fairy tale where a grandmother and a wolf prove difficult to tell apart.

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