The rationale that etiquette should be eschewed because it fosters inequality does not ring true in a society that openly admits to a feverish interest in the comparative status-conveying qualities of sneakers. Manners are available to all, for free.

Judith Martin (b. 1938) American author, journalist, etiquette expert [a.k.a. Miss Manners]

Common Courtesy, “On Etiquette as Language, Weapon, Custom, and Craft” (1985)
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