In so far as the teaching brings about the association, feeling of recognition, etc.etc., it is the cause of the phenomena of understanding, obeying, etc[.|;] and it is a hypothesis that the process of teaching should be needed in order to bring about these effects. It is conceivable, in this sense, that all the processes of understanding, obeying, etc. should have happened without the person ever having been taught the language. (This, just now, seems extremely paradoxical).