《晋书·志·第六章》
神秘的道无所不包，其神妙体现于阴阳；有形器物的精微，其根本体现在律吕。
夫神道广大，妙本于阴阳；形器精微，义先于律吕。
The mysterious Way is all-encompassing, and its mysteries are seen in yin and yang; the microcosm of tangible tools is fundamentally expressed in pitch and tuning.