Hegel’s approach to ancient scepticism is often discussed only in the context of epistemological questions. But it is also of crucial importance for his practical philosophy. Hegel draws on central figures of Pyrrhonian scepticism in order to subject Kant’s antinomies – i. e., Kant’s cosmology – to a fundamental revision. He radicalises Kant’s sceptical method to “self-completing scepticism”. At the same time he gives Kant’s concept of the world a practical twist: In Hegel’s Phenomenology of Spirit, world means an inhabited (...) sphere in which powers and counter-powers are in conflict with each other. In doing so, he opens up the tradition of negativist thinking in political philosophy, which ranges from Marx and Adorno to the current theories of radical democracy. When Hegel calls Pyrrhonian skepticism a “negative dialectic”, he thereby marks what he views as a deficit: the inferiority of Pyrrhonian skepticism to speculative philosophy. However, it is precisely the practical dimension of Hegel’s dialectic that suggests that the sceptical motives of his thinking should be given great weight. This can be seen most clearly in Hegel’s concept of Bildung, which defines emancipation processes as the reactivation of open power relations in static conditions of domination. (shrink)