The interaction (circulation) of the living and inert matter of the planet provides dynamic balance, biogeochemical cyclicity of natural processes, the preservation of the biosphere and its evolution. The natural consequence of the development of living matter and the biosphere is the appearance of man in the world of life. Man as the offspring of nature is inextricably linked with it, inseparable from the general laws inherent in all living things. But unlike all other higher manifestations of the organization of living matter, a person is endowed with reason and the ability for creative work, which are a special property of living matter.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.