on the dynamic aspect of law is the longest and most fully developed chapter in this book other than the chapter on the static aspect of law. VI. Law and State Chapter Six of Pure Theory of Law has Kelsen present his celebrated identity theory of law and state. This is Kelsen's highly functional theory of the state and the law as representing the same entity. It is not to be confused with the sociological domain or the cultural domain of intersubjective activity. Nor is it to be confused with the political or even the religious domain of intersubjective interaction among individuals. VII. State and International Law In Chapter Seven, Kelsen discusses the interaction of state law and international law as these are especially guided by the understanding of political sovereignty. For Kelsen, the assessment of international law is that it represents a very primitive form of law in distinct contrast to the highly developed forms of law as may be found in individual nations and states. As a result, Kelsen emphasizes that international law is often prone to the conduct of war and severe diplomatic measures (blockade, seizure, internment, etc.) as offering the only corrective measures available to it in regulating the conduct between nations. To him, international law is formed in war and reprisals. For Kelsen, this is largely inevitable due to the relative primitiveness of international law in contemporary society. VIII. Interpretation Kelsen's final chapter, Chapter Eight, deals with the subject of interpretation in at least three of its most important aspects. First, Kelsen discusses the nature and methodology of the interpretation of the law. Second, he discusses interpretation as an act of cognition and of voluntary will. Third, he discusses interpretation as it is to be understood as part of the science of law, as Kelsen has defined it as being 'purified' from the undue influences of politics, morals, and metaphysics. Supportive and supplementary commentary Kelsen attempted to reconstruct 'legal science (Rechtswissenschaft)' as a 'science of norms (Normen)', on analogy with Immanuel Kant's conception of a science of 'causality' as used in natural science (Hans Kelsen, Society and Nature, 1946, pages 249-262, Kegan Paul Press). This type of legal science would be 'pure' in two senses as described below. Defining 'purity' of legal science Firstly, it would be 'pure' in a sense analogous to that in Kant's Metaphysical Foundations of Natural Science. It would set out