Coarse jingles such as “good is rewarded, evil is rewarded”, “price is determined by quality” and “Reputation determines sales” cannot accurately and comprehensively reflect the social laws determined by the resonance of the best in human nature -The higher the level of behavior quality, the more returns you will get. This is a quantitative law of exchange in which behavior quality participates. It can be called the law of mass exchange, or simply the law of mass. The positive case of the law of quality exchange is that “one can realize one’s good wishes by improving the quality of behavior” (its negative case means that it is difficult to achieve good wishes by reducing the quality of behavior). It can be seen that fulfilling one’s wishes with quality is both an objective law and a code of conduct (or ethics). “Fulfillment of one’s wishes with quality” is the basic principle of ethics, which can also become a high-level world view.
The current definition of quality is "the degree to which a group of intrinsic attributes fulfills the requirements". The definition has two major drawbacks: it is subjective quality and no positiveness restrictions on the "requirements" that are met. The current definition of quality can be transformed into "quality is positive degree" by simply replacing the requirements met by intrinsic characteristics with positive, objective and abstract "general social requirements". This new definition of quality can overcome the shortcomings of the original definition of quality. It has positiveness, objectiveness and abstract, and it is very symmetrical and coordinated with the value definition of positive effect.