The interpretation of a case is corroborated only by the successful continuation of a self-formative process, that is by the completion of self-refle… - Jürgen Habermas

The speaker must choose a comprehensible [verständlich] expression so that speaker and hearer can understand one another.

The usage of the words “public" and “public sphere” betrays a multiplicity of concurrent meanings. Their origins go back to various historical phases and, when applied synchronically to the conditions of a bourgeois society that is industrially advanced and constituted as a social-welfare state, they fuse into a clouded amalgam. Yet the very conditions that make the inherited language seem inappropriate appear to require these words, however confused their employment.

The 'state' on the modern conception is a legally defined term which refers, at the level of substance, to a state power that possesses both internal and external sovereignty, at the spatial level over a clearly delimited terrain (the state territory) and at the social level over the totality of members (the body of citizens or the people). State power constitutes itself in the forms of positive law, and the people is the bearer of the legal order whose jurisdiction is restricted to the state territory. In political usage, the concepts 'nation' and 'people' have the same extension. But in addition to its legal definition, the term 'nation' has the connotation of a political community shaped by common descent, or at least by a common language, culture, and history. A people becomes a 'nation' in this historical sense only in the concrete form of a particular form of life.