The work of Jürgen Habermas has been described as eclectic. It is also prolific. Fortunately for his readers the prolificacy and eclecticism of the author are mitigated by the recurrence of his themes. These concern the emergence and nature of modern occidental society, both from a sociological and philosophical perspective. On a more philosophical level, there is also a strong plea for a paradigm change. The philosophy of the consciousness made the lone subject, in search of knowledge, face the external world. The dialogic philosophy of Habermas sees interlocutors engaged in dialogue about the material, social and internal world and their many aspects. Furthermore, there are many fruitful sidelines: the nature of language, the personality structure of the individual, socialisation and the status of the social sciences. All these various strands are woven into a coherent model of the nature of western civilisation. In the recombination of the contributory constituents, derived from American pragmatism, German Idealism, Hermeneutics, Marxism, the Frankfurt School of Sociology and Systems Theory, lies the originality and breadth of his work.

For reasons to be elucidated, it is appropriate to characterise the Habermas account as a hypothetical model. This model gives a hypothetical representation of the structure of modernity. It attempts to characterise its constituents and how they may be related.