Influenced by the forms of action in Roman law,action in rem and actin in personam,the term jus in re and jus in personam appeared in the theory of the School of Qossators 1000 years later,and became popular due to the extensive practices in German law.Thus they comprise complicated meanings,atleastthree of which we can generalize as over things,dominative and absolute. Vice versa,the three meanings,with inherentconsistency,are essential components of the property of thingness. However,the forms of action in Roman law have been abandoned in modern law,so we need a new logic supportto keep the consistency of the three components under modern contextof right. The article argues thatthe knowing of parties is such logic support. In addition,based on this new support,the traditional civil law focusing inner intentcould be pushed forward to modern civil law focusing presumed intent. |