Aside from an appeal to common sense, what are the strongest contemporary arguments for the existence of social rules? By social rules, I mean social rules in the tradition of Durkheim, Weber, Hart, etc. These philosophers, to varying degrees, argued that there exist certain social rules or social regularities that "structure" society. Some have argued that these social rules are always normative. Others have argued that they need not be (i.e., Searle). An example would be the "social rule" to drive on the right side of the road. This social rule is also a legal rule and carries sanctions. But, we need not draw such secondary distinctions for the purposes of this question.