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道可道，非常道。名可名，非常名。無名天地之始。有名萬物之母。故常無慾以觀其妙。常有欲以觀

其徼。此兩者同出而異名，同謂之玄。玄之又玄，眾妙之門。(《道德經》- 老子)

The Way that can be told of is not an unvarying way;The names that can be named are not unvarying names.It was from the Nameless that Heaven and Earth sprang;The named is but the mother that rears the ten thousand creatures, each after its kind. (chap. 1, tr. Waley)