一为了使概念具有准确性和鲜明性,必须限制概念。在写作中间,由于我们没有有效地限制概念,往往使判断不恰当,论证不严密,使自己听要表达的意思模棱两可、模糊不清,甚至是错误的。这种情形有时候比较容易发现,有时候却不大容易发现。比如说,“我们提倡密植”,这个判断是不恰当的,因为不是所有的“密植”都是对的,必须在“密植”上面用“合理的” In order to make the concept of accuracy and clarity, the concept must be limited. In the middle of writing, because we do not effectively limit the concepts, we often make the judgments inappropriate and the arguments are not rigorous so as to make ourselves ambiguous, ambiguous or even wrong about what we mean to be expressed. This situation is sometimes easier to spot, sometimes less obvious. For example, “we advocate planting close planting,” this judgment is inappropriate because not all “close planting” is right and we must use “reasonable”