老子 Lǎozi (c. 6th – 5th century BC) was a Chinese monist philosopher; also called Lao Zi, Lao Tzu, Lao Tse, or Lao Tze. The Tao Te Ching (道德經, Pinyin: Dào Dé Jīng, or Dao De Jing) represents the sole document generally attributed to Laozi.
The Tao that can be expressed is not the eternal Tao; The name that can be defined is not the unchanging name. Non-existence is called the antecedent of heaven and earth; Existence is the mother of all things. From eternal non-existence, therefore, we serenely observe the mysterious beginning of the Universe; From eternal existence we clearly see the apparent distinctions. These two are the same in source and become different when manifested. This sameness is called profundity. Infinite profundity is the gate whence comes the beginning of all parts of the Universe.
She does not show herself, and therefore is apparent. She does not affirm herself, and therefore is acknowledged. She does not boast and therefore has merit. She does not strive and therefore is successful. It is exactly because she does not contend, that nobody can contend with her.