诡辩和巧辩的共同特征都是故意违反逻辑，制造荒谬，掩人耳目。但诡辩和巧辩有一个善恶、美丑的界限，判定诡辩和巧辩的标准的关键是立场问题。站在善与美的立场上辩解，制服对方，是巧辩；站在恶与丑的立场上辩解，欺诈对方，是诡辩。诡辩暴露论辩者目的的卑劣和手段的低下， The common traits of sophistry and clever argumentation are the deliberate violation of logic, the fabrication of absurdity, and the loss of all human beings. However, sophistry and clever argumentation have a good and evil, beauty and ugliness boundaries, the key to determine the standard of sophistry and clever debate is the position issue. It is sophistry to stand on the position of good and beauty and to subdue the other side. It is sophistry to stand on the position of evil and ugliness and to cheat each other. Sophistry to expose the despicable purpose of the debates and means of low,