Excerpts from the book by Smith, Huston. The World's Religions, Revised and Updated (P.230). HarperOne. Kindle-Version. 

Covered here in short 3 minutes:

Lao Tzu, 604 B.C., Confucius meets him, the Old Master or Old Boy as Lao Tzu is translated leaves riding on a water buffalo and at the border when asked for his teaching, he writes in three days the Tao Te Ching.

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