What cannot be seen is invisible,
    视之不见，名曰夷；

    What cannot be heard is inaudible,
    听之不闻，名曰希；

    What cannot be touched is intangible,
    搏之不得，名曰微。

    These three,unfathomable,blend into one.
    此三者不可致诘，故混而为一。

    Up, it is not bright; down, it is not dark.
    其上不皦，其下不昧，

    Like a nameless endless string,it ends in nothing.
    绳绳min不可名，复归于无物。