They're both about the correct or proper way to do something. There is a correct and proper way to use words and there is a correct and proper way to behave with other people. And I behaved improperly with John and feel bad, so I compensate by obsessing with language, which is easier to control than behavior.
Peter Cameron (2009). “Someday This Pain Will Be Useful to You: A Novel”, p.116, Macmillan
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