In Bill Bryson's book "The Mother Tongue: English and How it Got that Way," he suggests that perceiving English as synonymous with knowing the set of rules and nuances of the language might mislead outsiders. The quote reflects the complexities and idiosyncrasies inherent in English that make it challenging to master.

By emphasizing the distinct features of English, Bryson highlights that fluency goes beyond simple comprehension; it involves an appreciation for its history and evolution. This notion illustrates how English can appear straightforward to outsiders, while it encompasses a rich tapestry of influences and exceptions that define the language.