An editorial note here: I've been using Scheme as an example of another 
language in which quoting works the way it currently does in Squeak.  
However, Scheme has conveniently avoided the main problem we are 
discussing, because it defines "true", "false", and "nil" as literals 
with unique external representations which are not symbols, i.e.

     #t
     #f
     '()
 

Whereas in Squeak, true, false, and nil are reserved identifiers (not 
literals).




     -- tim