For a mature contemporary college student, we should be brave in "negation" and "self-negation", because the negation of negation is the self-development and self-improvement of things. Due to internal contradictions, things go from affirmation to self-denial, and then denial makes a new affirmation, that is, negation of negation. This is a movement process in which things develop themselves and improve themselves. The first negation, the positive stage of things develops to the negative stage of negation. Only by repeating some characteristics of the positive stage on a new basis can we solve the contradictions in the first two stages, thus obtaining their own positive factors, overcoming their own one-sidedness, achieving the unity of opposites between the positive and negative aspects, and fully developing the things themselves.

We should adhere to the dialectical view of negation, adopt a scientific analytical attitude towards everything, and oppose the metaphysical thinking method of affirming and denying everything. Get rid of its dross and take its essence, make the past serve the present and make foreign things serve China.

Dialectical view of negation is of great practical significance to our study, work and life. Dialectical view of negation is the ideological weapon to criticize metaphysics, which tells us to adopt a dialectical analytical attitude towards everything and not to make the one-sided mistake of metaphysics affirming or denying everything. Generally speaking, first, we should critically inherit the cultural and historical heritage, make the past serve the present, bring forth the new, and oppose retro-ism and historical nihilism, which is one-sided in metaphysics. Second, we should also critically inherit foreign culture, make foreign things serve China, and oppose the two mistakes of xenophobia and total westernization. In a word, the basic principle of dialectical negation is the philosophical principle of building a new socialist culture.

Things seem to move repeatedly in development, which Lenin called "the movement back to the starting point". First of all, in the development of things, after a period of "affirmation-negation-negation of negation", there seems to be a reply to the starting point, that is, the negation of negation repeats some characteristics of the affirmation stage. This is what Lenin called "the movement back to the starting point". Secondly, the reason why this phenomenon occurs is that the affirmation stage and the negation of negation are the opposite of negation, so there are inevitably some similarities between them, and some characteristics of the first stage will be more or less manifested in the second stage. But in the end, the "reply" here is just a "like" reply, not a real return to the starting point, but a return on a higher basis and a repetition of a higher stage. There are essential differences between two negations, two qualitative changes, the negative stage of negation, the positive stage and the negative stage.

The negative law of negation reveals that things are rising, but they are rising in a straight line, but the negative law of "spiral rise" and "wave progress" is objective and universal, which has been confirmed by a large number of scientific facts. In the microscopic world, during the decay of radioactive elements, the basic particle-positron will be produced, which is private when it exists alone, but it and the electron will deny themselves and become a pair of photons, which is the first denial. When photons with energy exceeding 1.02 MeV pass through another particle (atomic particle), they will become electron pairs again, which is the process of negation of negation. In the history of scientific development, people's understanding of the nature of light has also gone through three stages, the initial particle theory, the downward wave theory, and the final new theory that is the unity of particle theory and wave theory.

Dialectical materialism and historical materialism believe that the law of negation of dialectics is the law of spiral progress and rise, that is, the law of human society and history paying attention to the development of ideal goals that people yearn for, and its principle can be expressed as that objective things will return to themselves at a higher level every time they are denied.

I have studied Marxism for two months, seen a lot, learned a lot, and learned a lot. Finally, I want to end this article with a sentence from the Encyclopedia of China Philosophy Volume-"Affirmative negation-negation is a new affirmation, and things reproduce themselves on a new basis, as if they were a return to the original things, but not a simple repetition of the original things, but a return on a higher and richer basis, which is a new thing that has completed its own development process."