The essence of science is the system of truth. It is a practical way to know the world.

Science is empirical cognition instrumented by human consciousness. Scientific theory is an empirical cognitive tool. The process of inventing scientific theory is the consciousness instrumentalization of empirical cognition.

It can be said that the two key points of science are: experience+instrumentalization of consciousness. Ancient Chinese medicine and astrology are an empirical cognition of human beings, but they have not yet realized the instrumentalization of consciousness and do not belong to science in the modern sense.

Modern science is also an empirical cognition, and it is also an empirical cognition under the instrumentalization of human consciousness, and at the same time, consciousness in science is instrumentalized.

It also includes the products of the evolution stage of consciousness itself, that is, the products from randomness and fuzziness of consciousness to fixation, systematization and instrumentalization of consciousness, especially the scientific concept formed after the fixation and systematization of consciousness, which is the product from randomness and fuzziness to fixation and systematization of consciousness, and the concept itself can be said to be fixation and systematization of consciousness.

Extended materials:

Science is an orderly knowledge system based on testable explanations and predictions on the form and organization of objective things. In an old, closely related sense, "science" also refers to the subject itself that can reasonably explain and reliably apply knowledge. Professional practitioners of science are customarily called scientists.

Science is a practical activity that unifies subjective knowledge with objective reality, a bridge to the expected goal and a link between reality and ideal. It can also be said that science is a practical activity to make subjective knowledge conform to objective reality (the original appearance of objective things, including the essential attributes, practical connections and changing laws of things) and to create objective reality that conforms to subjective knowledge (to transform subjective knowledge into objective actual things, conditions and environments).

this is the connotation of science. It is superstition that we do not explore and pursue the concrete unity of subjectivity and objectivity, but stubbornly believe that subjective knowledge conforms to objective reality and can be transformed into objective reality without sufficient basis.

the subjective understanding that can achieve the expected goal is the subjective understanding that conforms to the objective reality. Calendar is a subjective understanding, and the expected changes of day and night and seasons can achieve the goal, which is a subjective understanding in line with objective reality. The expected goal achieved is the objective reality that conforms to subjective understanding. Product design is subjective knowledge, and qualified products are the objective reality that conforms to subjective knowledge.

The contents of any kind of ideology and culture, no matter what religion or doctrine, or even some scientific disciplines, all contain different degrees of science and superstition. There is no pure science and no pure superstition.

under certain specific conditions, there are superstitions in science, and there are sciences among superstitions, and science can be transformed into superstition, and superstition can be transformed into science, whether it is science or superstition. How many sciences and superstitions there are can only be identified according to specific contents through repeated or universal practice tests and scientific analysis, which will turn people's thinking from superstition to science.

Baidu encyclopedia-science