Natural dialectics is related to natural science and engineering technology, while historical materialism (social dialectics) is related to social science and social outlook.

Pay attention to dialectics of nature;

Modern science and technology shows some knowledge in between, that is, on the one hand, transforming nature, on the other hand, transforming human society. For example, there are always economic factors to be considered in engineering technology. In a new category of systems engineering, such as scientific research system engineering, agricultural system engineering, enterprise system engineering and engineering system engineering, etc. Social science is even more important. Demography, futurology and Scientology, for example, are all disciplines between natural science and social science.