① Quantitative change is a necessary preparation for qualitative change.

② Qualitative change is the inevitable result of quantitative change.

③ Quantitative change and qualitative change are mutual infiltration. The law of mutual change of quality reveals that the development process of things is the unity of continuity and stages.

Degree is not only the unity of quality and quantity, but also the distinction between quantitative change and qualitative change. The fundamental sign of quantitative change and qualitative change is whether things change beyond the limit, the change within the limit is quantitative change, and the change outside the limit is qualitative change.

Everything is the unity of quality and quantity. Quality is the stipulation that a thing becomes itself and is different from other things. The stipulation of matter is determined by the particularity of internal contradictions of things. Cognitive quality is the starting point and foundation of cognition and practice.

Quantity is a stipulation that can be expressed by quantity. Understanding the quantity of things is the deepening and accuracy of understanding. Only by correctly understanding the quantity of things can we correctly estimate the position and role of things in practice.

Extended data:

1, laws of qualitative change and quantitative change

As the name implies, there are two very important concepts in the laws of qualitative change and quantitative change. To understand them accurately, we must grasp the two concepts of quality and quantity.

Everything is the unity of quality and quantity. Quality is the stipulation that a thing becomes itself and is different from other things. The stipulation of matter is determined by the particularity of internal contradictions of things. Cognitive quality is the starting point and foundation of cognition and practice. Quantity is a stipulation that can be expressed by quantity. Understanding the quantity of things is the deepening and precision of understanding. Only by correctly understanding the quantity of things can we correctly estimate the position and role of things in practice.

For example, a piece of chalk has its quality, that is, chalk, and its quantity, that is, weight, length and volume. Therefore, recognizing that this is a piece of chalk is naturally the starting point of understanding and practice, and recognizing the amount of chalk is the deepening of understanding of chalk. But the problem is that the quantity of things can be understood from two angles, one is the quantity of a single thing, the other is the quantity of similar things, and the latter involves the problem of degree, because obviously homogeneous things vary widely because of the different functions of quantity.

Degree is the quantitative limit of things to maintain their own quality, and it is the scope, amplitude and limit of things. Its boundary is called the junction, beyond which things form a new whole. Degree is not a joint point, and many students will make mistakes on this point. Degree is a range, and the joint point is a point, which is the limit of degree. Cognition can accurately grasp the quality of things and will not confuse different things; Knowledge can provide correct guidelines for practical activities, that is, the principle of moderation, to prevent "excess" or "deficiency".

Degree is not only the unity of quality and quantity, but also the distinction between quantitative change and qualitative change. The fundamental sign of quantitative change and qualitative change is whether things change beyond the limit, the change within the limit is quantitative change, and the change outside the limit is qualitative change.

The dialectical relationship between quantitative change and qualitative change is: ① quantitative change is the necessary preparation for qualitative change, ② qualitative change is the inevitable result of quantitative change, and ③ quantitative change and qualitative change are interpenetrating. The law of mutual change of quality reveals that the development process of things is the unity of continuity and stages.

2. The law of negation of negation

The process of denying things is the process of "sublating". This tells us that negation is not a total negation, but a part of the objective movement of things. From the content, the law of negation of negation is the process of self-development and self-improvement of things; Formally, it is spiraling or wave-like. This shows that the development direction of things is forward and upward, the road is tortuous, and it is the unity of advancement and stumbling. The law of negation of negation reveals the direction and road of the development of things.

Since the development of things is the unity of advancement and stumbling, we can't expect everything to be smooth sailing. We should be good at understanding all kinds of possibilities in the development of things, fully estimate their difficulties and twists and turns, stand the test of difficulties and setbacks, strengthen our confidence, overcome difficulties and open up a way forward.

People's Network-Ma Yuan Dialectics: Law of Mutual Variation of Quality