The book discusses a democratic legitimation for modern law. Debates on Europeanisation are taken into account. Ronald Dworkin's, Neil MacCormick's and Jürgen Habermas's standpoints on relations between the law and the public sphere are investigated. Concepts of self-reflexive polity, self-constitutionalisation, constitutional patriotism are analysed.

In the original publication of the article, the paragraph beginning “We begin with two steps or lawyers…” should read as “We begin with two steps or layers privileging jurisdictio as potestas.

The chief concern of the paper is to initiate discussion on the difference between the private and public power of judgement. The inspiration comes from Kant and his conception of the power of judgement, customs, morality and provisional law.

In the following paper sources of a constitution are put in question in general, and more specifically, the constitutional culture of the European Union Law is being investigated in-depth with regard to principles of deliberative democracy and rulings of the Court of Justice of the European Union. The change of a law application paradigm as well as the change of a legal systems’ nature are taken into account.

Zsfassung der Beitr. in engl. Sprache. - Engl. Zsfassung u.d.T.: On Friedrich Nietzsche's philosophy.