Who's Li Er?
Li Er is Lao Zi.

Laozi, surnamed Li Minger, whose real name is Bo Yang or Bo Yang, was born in the late Spring and Autumn Period. His date of birth and death is unknown, and his birthplace is also controversial. China was an ancient thinker, philosopher, writer and historian, the founder and main representative of Taoist school.

And Zhuangzi is also called "Zhuang Zi". In Taoism, he is revered as the ancestor and called "the old gentleman on the throne". In the Tang Dynasty, he was regarded as the ancestor of Li. He was once regarded as a world cultural celebrity and one of the world 100 historical celebrities.

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Laozi's works and thoughts have become the precious wealth of the world historical and cultural heritage. The influence of Laozi's thought is unparalleled not only in Taoism, but also far-reaching outside Taoism.

Its influence not only includes philosophy, religion, politics, economics, sociology, aesthetics, ethics, literature and art, psychology, education, logic and rhetoric, but also involves many fields such as medicine, health preservation, qigong, military affairs, management, architecture and gardening. According to the incomplete statistics of the Yuan Dynasty, since the pre-Qin period, there have been more than 3,000 kinds of research and annotation works in the Yuan Dynasty.