Laozi, a great philosopher and thinker in ancient China, the founder of Taoist school, a world cultural celebrity and one of the world's top 100 historical celebrities, has the classic Tao Te Ching. The essence of his works is simple dialectical method, and his theory has a far-reaching impact on the development of China's philosophy. In Taoism, Laozi is regarded as the ancestor of Taoism.