What kind of philosophy does Lao Tzu have?

Laozi's philosophy takes "Tao" as the core: Laozi believes that "Tao" is the origin of all things in the world and the universal principle and fundamental law of the existence and change of all things. The proposition of "Tao" indicates that people's abstract thinking ability to understand the world has improved to a new level. For the first time, Lao Tzu regarded "Tao" as the highest category of philosophy, opposed the knowledge of God and the promising of heaven, and put forward the thought of natural inaction of heaven in tit-for-tat manner. This means that the divine power in the sky is shaken, and it is also a reflection of the decline of the royal power on the earth. But in Laozi's thought, "Tao" is only a formal concept, not a definite concept. "Tao" itself is not a thing, so it is nameless.