The Norm as Thought and as Reality.- Law as Institutional Fact.- Facts and Fact-Descriptions.- On Analytical Jurisprudence.- Beyond Positivism and Natural Law.- Law, Morality and Positivism.- The Analytico-Dialectical Theory of Justice: A Sketch of an Action-Theoretical and Non-Cognitivist Theory of Justice.- Institutional Morality and the Constitution.- The Limits of Rationality in Legal Reasoning.- The Conditio Humana and the Ideal of Justice.