In all known languages [...] arbitrary sequences [...] are at once recognized by speakers as meaningful symbols of reference. In English [...] the sequence 'g' plus 'o' in the word 'go' is ana unanalyzable unit and the meaning attaching to the symbol cannot be derived by relating to each other values which might be imputed to the 'g' and to the 'o' independently.
- Sapir (1933a), Pag. 9