Original Chinese text. The navigation is in English; this edition does not include an English translation. Read it as historical and cultural material, not as a factual prediction or professional advice.

第四章

道冲而用之或不盈，渊兮似万物之宗。挫其锐，解其纷，和其光，同其尘。湛兮似或存，吾不知谁之子，象帝之先。