一孔录The video for this chapter is still in production. For now this page gives the original text, the facsimile page, a working translation and the commentary; the full reading follows when the video is out.
三十輻共一轂，當其無，有車之用。埏埴以為器，當其無，有器之用。鑿戶牖以為室，當其無，有室之用。故有之以為利，無之以為用。Thirty spokes share one hub; it is the empty space that makes the cart useful. Clay is shaped into a vessel; it is the empty space that makes the vessel useful. Doors and windows are cut to make a room; it is the empty space that makes the room useful. So what is there gives the benefit, and what is not there gives the use.
What this chapter says
一孔按：车、罐、屋子，看得见的是实的那部分，用上的却是空的那部分；有和无，少一样都不成。王弼注原话：有之所以为利，皆赖无以为用也。
Yikonglu's reading of this chapter is in Chinese for now; the English version comes with the video.
白Plain Chinese
三十根辐条共一个车毂，正因为毂中是空的，才有车的用处。揉和陶土做成器皿，正因为器中是空的，才有器皿的用处。开凿门窗造成房屋，正因为屋中是空的，才有房屋的用处。所以“有”给人便利，靠的是“无”发挥作用。
Draft plain-Chinese rendering following Wang Bi; it will be checked when the chapter is taught.
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