The philosophy contained in the poem "Sitting on the ground and walking eighty thousand miles in a day, surveying the sky and looking at a thousand rivers in the distance" is the unity of the absoluteness of material movement and the relativity of stillness. Materialist dialectics believes that movement is absolute and stillness is relative. Stillness is stillness within a certain period of time and within a certain range, and is a special state of motion. Space-time is the existence form of material movement. Space-time has absoluteness and relativity, infinity and finiteness.
Materialist dialectics is "Marxist dialectics". Take the general laws of nature, human society and the development of thinking as the research objects. It is an advanced form of the development of dialectical thinking. An important part of Marxist philosophy. It is believed that the material world is a unified whole with universal connections and constant movement and change; dialectical laws are the laws of the material world's own movement; subjective dialectics or dialectical thinking is the reflection of objective dialectics in human thinking. It is the most comprehensive, rich and profound theory of development. It includes three basic laws (the law of the unity of opposites, the law of mutual transformation of quality and the law of negation of negation) and a series of basic categories such as phenomenon and essence, cause and result, necessity and contingency, possibility and reality, form and content, etc. The unity of opposites Laws are the core. It is a cosmology, epistemology and methodology.