修辞学科在语言中的功能和语法、逻辑等学科比较起来，有一些比较显著的个性。人们在论述语法、逻辑、修辞不同性质时，常常说语法管的是“通不通”，逻辑管的是“对不对”，修辞管的是“好不好”。“好不好”这种价值判断中应包含所调适的语言文明不文明，社会语言生活是否健 Rhetorical subjects in the language of function and grammar, logic and other disciplines compared to some of the more significant personality. When discussing the different nature of grammar, logic and rhetoric, people often say that grammatical control is “unworkable”, that logic control is “right” and rhetorical control is “good or bad”. “Good” This value judgments should include the adaptation of the language civilization is not civilized, social language life is healthy