Abstract
One of the important ways for us to raise our level of philosophical research is to study and summarize the history of natural science. Lenin pointed out that the whole history of thought, including the history of each branch of natural science, is "a realm of knowledge which should establish cognitive theory and dialectics." (1) In indicating philosophical research tasks, Lenin further wrote: "If we want to carry on the enterprises of Hegel and Marx, we should dialectically study the history of man's thought, science, and technology." (2)
