That is, although he looked into the mirror while he lathered, he didn’t watch where his brush was moving but, instead, looked directly into his own eyes, as though his eyes were neutral territory, a no man’s land in a private war against narcissism he had been fighting since he was seven or eight years old.
There are no more uses of "narcissism" in the book.
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The narcissistic teenage girl spent hours checking her makeup in a mirror everyday.
"I think narcissism is one of my most interesting qualities. Don’t you?"