Li Er was called Lao Nian , a native of the Chen state , in luyi and other places in what is now eastern Henan Province.
It is said that Li Er was born like an old man, also known as Lao Tzu.
When Li Er grew up, he went to Luoyang, the capital of Zhou, to serve as the director of the National Library.
Later, the Zhou Dynasty fell, the princes did not pay the membership fee, and were forced to reduce their personnel, so Li Er left the capital.
Li Er was already a well-educated celebrity at that time. Yin Xi, the governor of Hangu Pass, learned of Li Er's passing and asked Li Er to teach him the doctrine. Therefore, Li Er wrote the Tao Te Ching for him.
Health practitioners say that the Tao Te Ching is a treasure book of health, and philosophers say that the Tao Te Ching is a philosophical bible. In any case, the Tao Te Ching is a precious spiritual treasure.
![The descendants of the Surname Li are all over the world, and the people with the surname of Li who are famous in the world are almost all over the world[fig]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)