The nature of rules and how they exist can reveal how both an economy and the law will operate. A rule exists as both thought and action, and would be meaningless if thought and action were separated. A thought needs to be expressed in the world, and an action must be structured by a preexisting thought. In relation to this, an economy is both theory before experience and practice after experience. And a law is not an overarching and artificial principle alone but must be produced, renewed, and articulated by social interaction.