As to what degree the brain has a natural language, there are more questions and answers.
They are emotional expressions which seem to belong more to the natural language than to the invented language.
This is part of the natural language of the dog, and how expressive it is!
As listened to, they seemed the simple, natural language of his thought.
Her natural language, Masson tells us, was the Corsican patois.
Both our love and our desires need purifying if this is to be their natural language.
The pictorial illustrations show the location of each of the phrenological organs, and their natural language.
The eye of genius has always a plaintive expression, and its natural language is pathos.
The shake of the head is the natural language of Combativeness, and means no, or I resist you.
However that may be, it is possible to detect instances in which he falls below his own maturer ideal of natural language.