CHAPTER I THE PROBLEM OF THE “POLITICAL FORM” IN A GENERAL THEORY OF THE STATE. ANALYSIS OF THE MONARCHICAL PRINCIPLE. 1. Monarchical principle and Verfassungsstaat 2. The form Verfassungsstaat and its internal problematic structure 3. Personal instances in the process of government and monarchical principle. How they fit within the constitutional order 4. From monarchical principle to a modern concept of organism. An excursus on Stahl CHAPTER II MEANING OF THE INTERNATIONAL LAW AND THE CLAUSE «REBUS SIC STANTIBUS» 1. Declaration of will in the positive law 2. Declaration of will of the States. Definition of the clause «rebus sic stantibus» in the International Law 3. The «Selbsterhaltungrsecht» between law and politics CHAPTER III A THEORETICAL NECESSARY ASSUMPTION: A CRITIQUE OF THE NEOKANTIAN PHILOSOPHY OF LAW 1. Problematic feature of the two fundamental thesis of the Marburg Neocriticism 2. Kaufmann’s critique to the «South-western School»: some problems of interpretation 3. Limits of the Neokantian philosophy of law in the light of the Rechtsidee CHAPTER IV «VOLKSWILLE» AND «RECHTSIDEE» BETWEEN POLITICAL THEORY AND CONSTITUTIONAL LAW 1. Fundamental rights in the light of Rechtsidee and the «juristische Dingbegriffe» 2. The making process of the popular will (Volkswille) in Kaufmann’s critique of the constitutional law CHAPTER V THE PROBLEM OF INTERNATIONAL JUSTICE AND THE UNWRITTEN FOUNDATION OF THE LAW 1. General principles in the unwritten International Law 2. Idea of justice and institutional order between positive Public Law and International Law Conclusion Bibliography: Works of Erich Kaufmann