Looking for the author and the quote

[Gael Vaamonde]

Hello,

I remember to read an article or a book where it is said  that much of  
the cases discussed in terms of grammatical vs. agrammatical should be  
better accounted for in terms of appropriated vs. inappropriated  
context. Of course, this is a general idea which can be directly or  
indirectly found in several works, but I am looking for the  
source/author where (I think) this is stated as a (well-known?) quote  
or maxim. Some suggestion?... Thank you!

Gael Vaamonde
University of Vigo