Thus, what can be seen by looking is form and color. What can be heard by 1istening is name and sound. Alas!People of the world take form, color, name, and sound to be sufficient to get its [= the dao' s? the thing yí follows?] qing 情 (motivations). So, form, color, name, and sound are not sufficient to get its qing. Therefore, those who know do not speak and those who speak do not know, but how would the world be aware of this?!