1. Rules take precedence over principles; 2. Formal sources take precedence over informal sources; 3. Predictability takes precedence over legitimacy; 4. Literal interpretation takes precedence over other interpretation methods; 5. In English common law and Roman twelve tables law, procedure takes precedence over rights, and procedural law takes precedence over substantive law; 6. In Britain, equity takes precedence over common law. People who read Bai Bin's blog will find that there is actually another priority: basic value takes precedence over non-basic value.