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Hair on a man's chest is thought to denote strength. The gorilla is the most powerful of bipeds and has hair on every place on his body except for his chest.

"The Devil's Notebook". Book by Anton Szandor LaVey, 1992.
Hair on a man's chest is thought to denote strength. The gorilla is the most powerful of bipeds and has hair on every place on his body except for his chest.