“[They] are incurious about the logic and history of the English language and … have a tin ear for its nuances of meaning and emphasis. Too lazy to crack open a dictionary, they are led by gut feeling and intuition rather than attention to careful scholarship. … In their zeal to purify usage and safeguard the language, they have made it difficult to think clearly about felicity in expression and have muddied the task of explaining the art of writing.”