The secondary rules are those that provide for the creation, alteration, and extinction of primary rules.

Editing is not just about cutting; it's about finding the rhythm and soul of the story.

出自《魏源集·默觚下·治篇五》。三代以上，天都跟现在的天不一样，地都跟现在的地不一样，人也跟现在的人不一样，物也和现在的物不一样。