Narcissism of small differences

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In psychoanalysis, the narcissism of small differences (German: der Narzissmus der kleinen Differenzen) is the idea that when people in a relationship or community have a lot in common, they can actually be more likely to fight with each other and mock each other, because they become overly sensitive to small differences they notice in one another and treat those differences as bigger than they are. The term was coined by Sigmund Freud in 1917, based on the earlier work of English anthropologist Ernest Crawley. Crawley theorized that each individual is separated from others by a taboo of personal isolation, which is effectively a narcissism of minor differences.

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