The connection and difference between self-sufficient things and man-made things

The connection and difference between self-sufficient things and man-made things lies in their mode of production and degree of control.

Self-sufficient things refer to things that exist in nature and are not disturbed by human beings, such as mountains, rivers, animals and plants. Their production is determined by the laws and forces of nature, and human beings cannot directly control their production and changes. Man-made things are things created by human beings through their own will and efforts, such as buildings, tools, works of art and so on. Man-made things are determined by human wisdom and labor, and human beings can control their generation and change through design, manufacture and change. Self-sufficient things and man-made things are related and interactive. In the process of creating man-made things, human beings often learn from and use the characteristics and resources of self-contained things. For example, humans use natural water resources to build hydropower stations and natural wood to build houses. At the same time, man-made things will also have an impact on self-sufficient things, such as human industrial activities leading to environmental pollution and destruction of natural ecosystems.