This paper is a short introduction to Habermas’s life and philosophy. It outlines his views on society, religion, morality and politics. It begins with his ‘methodological pragmatism’ which emphasizes the performative and intersubjective role of language. This rejects the “philosophy of consciousness” and sees society as a medium in which we live. Society is not an aggregate of individuals or a unity but a complex, multifarious, intersubjective structure with many different overlapping spheres. Habermas is essentially a social scientist and his concern about society refers to the problem of how a social order and integrity can be maintained in a modern democratic and secular society. He believes that religion will survive a long time and is unsure whether philosophy will ever triumph over religion but is convinced that it can deal with our religious heritage with more sensitivity than hitherto. Habermas proposes a moral discourse theory based on the universalizability of social norms. In his political system, he combines the ideal of liberal democracy based on human rights with the ideal of republicanism based on popular sovereignty. He is nevertheless critical of some aspects of liberalism. Overall, Habermas foresees the danger to modern society to social groups that feel themselves to be alienated and marginalized from the mainstream.