读了贵刊1999年第3期刊登的《论交通事故责任认定的规则》（以下简称《规则》）一文后，颇有感触。现就文中的有关论点谈一些本人的看法，与徐斯逵同志商榷，也供同行们参考。一、关于“因果关系”和“作用大小”交通事故责任认定中，有三个重要的环节：一是查明交通事故原因， After reading the article entitled “Rules for Confirming the Responsibility of Traffic Accidents” (the “Rules”) published in your No. 3 issue of 1999, you are quite touched. I will now discuss some of my own views on the relevant points in the text, to discuss with Sir Hsu Chih-ting and to give my colleagues a reference. First, there are three important links in the identification of the cause of traffic accident and the role of “traffic accident”: First, to find out the causes of traffic accidents,