James Porter defined the discourse community as: "a local and temporary constraining system, defined by a body of texts (or more generally, practices) that are unified by a common focus.
詹姆斯·波特(James Porter)将话语社群定义为:“一个地方性和临时性的约束系统，由一组话语(或者，更普遍的，一些实际活动)所定义，他们因为一个共同的目的聚集在一起。