European Ungleichzeitigkeit: Introductory Remarks on a Binational Discussion about Unity in the European Union -- European Ungleichzeitigkeit: Introductory Remarks on a Binational Discussion about Unity in the European Union -- General Questions -- The Constitutional Treaty as a Reflexive Constitution -- Thoughts on a Methodology of European Constitutional Law -- Comment on Philipp Dann: Some Remarks on the Methodology of the "Constitutional Law" of the European Union -- The Primacy of European Union Law Over National Law Under the Constitutional Treaty -- Supremacy - Lost? Comment on Roman Kwiecie? -- The Democracy Concept of the European Union: Coherent Constitutional Principle or Prosaic Declaration of Intent? -- Comment on Niels Petersen: A Democratic Union: Coherent Constitutional Principle or Prosaic Declaration of Intent -- Institutional Aspects of the Constitution - Towards a New Institutional Balance? -- The Plurality of the Legislative Process and a System for Attributing Procedures to Competences -- The Concept of the "Legislative" Act in the Constitutional Treaty -- Comment on Alexander Türk: The Concept of the "Legislative Act" -- The Emperor's New Clothes: The ECB and the New Institutional Concept -- Comment on Timo Tohidipur -- The Right to an Effective Remedy Pursuant to Article II-107 Paragraph 1 of the Constitutional Treaty -- Comment on Katharina Pabel: The Right to an Effective Remedy in a Polycentric Legal System -- Sectoral Differentiation in the Constitution -- Developments in the Area of Freedom, Security and Justice Brought About by the Constitutional Treaty -- Comment on Dagmara Kornobis-Romanowska: Conceptual Changes in the Area of Freedom, Security and Justice through the Constitutional Treaty -- Constitutionalization of the Common Foreign and Security Policy of the European Union: Implications of the Constitutional Treaty -- Comment on Ireneusz Pawel Karolewski: Constitutionalization of the Common Foreign and Security Policy of the European Union: Implications of the Constitutional Treaty -- Common Commercial Policy: The Expanding Competence of the European Union in the Area of International Trade -- Comment on Dorota Leczykiewicz: Common Commercial Policy: The Expanding Competence of the European Union in the Area of International Trade -- Fundamental Rights Concerning Biomedicine in the Constitutional Treaty and Their Effect on the Diverse Legal Systems of Member States -- Comment on Atina Krajewska: Plural Concepts of Human Dignity and the Constitutional Treaty -- Remarks on Art. I-52 of the Constitutional Treaty: New Aspects of the European Ecclesiastical Law? -- Territorial and Temporal Aspects of Unity -- "United in Diversity" - The Integration of Enhanced Cooperation into the European Constitutional Order -- Comment on Daniel Thym: United in Diversity or Diversified in the Union? -- Observations on the Right to Withdraw from the European Union: Who Are the "Masters of the Treaties"?.