《淮南子·原道训》
音阶不过就是宫、商、角、徵、羽，但用这五音调配出来的声音却美妙动听；味道不过就是甜、酸、苦、辣、咸，但用这五味调配出来的味道却美味可口；颜色不过就是赤、黑、青、白、黄，但用这五色调配出来的颜色却美妙无比。所以就音调来说，宫调确立则五音便成；就味道来说，甜味确立则五味便成；就颜色来说，白色确立则五色便成；而对 道 来说， 一 之确立则万物就形成。
音之数不过五，而五音之变不可胜听也。味之和不过五，而五味之化不可胜尝也。色之数不过五，而五色之变不可胜观也，故音者，宫立而五音形矣。味者，甘立而五味亭矣；色者，白立而五色成矣；道者，一立而万物生矣。
The musical scale consists of just do, re, mi, fa, sol, yet the sounds made from combining these five notes are beautiful and pleasing to the ear; flavors consist of just sweet, sour, bitter, spicy, and salty, yet the tastes made from combining these five flavors are delicious and appetizing; colors consist of just red, black, blue, white, and yellow, yet the colors made from combining these five colors are beautiful and pleasing to the eye. So with reference to musical pitches, when do is established, then the five notes are complete; with reference to flavors, when sweet is established, then the five flavors are complete; with reference to colors, when white is established, then the five colors are complete; and with reference to the Way, when one is established, then all things are complete.