Dave

“The rules often mash together issues of grammatical correctness, logical coherence, formal style, and standard dialect, but a skilled writer needs to keep them straight. And the orthodox stylebooks are ill equipped to deal with an inescapable fact about language: it changes over time. Language is not a protocol legislated by an authority but rather a wiki that pools the contributions of millions of writers and speakers, who ceaselessly bend the language to their needs and who inexorably age, die, and get replaced by their children, who adapt the language in their turn.”
― Steven Pinker, The Sense of Style: The Thinking Person's Guide to Writing in the 21st Century