The dialectical perspective on quality and quantity is expressed in the law of the transformation of changes in quantity into changes in quality and vice versa (in short, the quantity-quality law). Under that view, quality and quantity exist in unity in things; each thing has different qualities and quantities; each quality has a defined level of quantity, in which the qualitative change occurs in leaps while the quantitative change takes place gradually. The change in quantity will be translated into the qualitative change when reaching the highest or the lowest quantity limits. | PHILOSOPHY - LAW - PSYCHOLOGY - SOCIOLOGY Dialectical Perspective on Quality and Quantity Nguyen Ngoc Ha* Abstract: The dialectical perspective on quality and quantity is expressed in the law of the transformation of changes in quantity into changes in quality and vice versa (in short, the quantity-quality law). Under that view, quality and quantity exist in unity in things; each thing has different qualities and quantities; each quality has a defined level of quantity, in which the qualitative change occurs in leaps while the quantitative change takes place gradually. The change in quantity will be translated into the qualitative change when reaching the highest or the lowest quantity limits. That qualitative change will be in turn translated into the change in quantity. The dialectical perspective on quality and quantity is simple in content, which anyone can understand and apply to their perception activities. Key words: dialectical, quality, quantity, law. 1. Introduction The law of the transformation of quantity into quality is one of the three fundamental laws of dialectics. Hegel was the first Western philosopher who built up that law (in the objective idealism) [4, ]. There existed numerous thoughts about the law of dialectics in general and the quantity-quality law in particular [4] in ancient Chinese philosophy. The quantity-quality law was argued and proven by Engels via various examples in his works Dialectics of Nature and AntiDühring [2, , 510-518]. In Vietnam, the quantity-quality law is mainly found in the textbooks of dialectics. However, the presentation of the law remains not very simple and not very easy to understand. There even exist different interpretations of some of the contents of this law. When it comes to the quality- quantity law, it is the dialectical perspective on quality and quantity to be discussed. This article seeks to add a number of contents to the perception and interpretation of the dialectical .
