Communication Quote by James Crawford
““we are unaware of any convincing evidence that languages are acquired through “practice.” On the other hand, studies have shown that students can reach high levels of proficiency through input alone—that is, with little or no production of the language through speech or writing.””
![“Language [can] be expressed . . . by movements of the hands and face just as well as by the small, sound-generating movements of the throat and mouth. Then the first criterion for language that I had learned as a student—it is spoken and heard—was wrong; and, more important, language did not…” quote by Harlan Lane](https://sms4smile.com/quotes/img-quotes/5d1/harlan-lane-110195_ability_language-can-be-expressed-by-movements-o_1734575.jpg)
