Bernd Ludwig

The ArgumentIn this paper it will be shown that Newton'sPrincipiagives an explication of and an argument for the first Law of Motion, that seems to be outside the scope of today's philosophy of science but was familiar to seventeenth-century commentators: The foundation of classical mechanics is possible only by recurrence to results of a successful technical practice. Laws of classical mechanics gain their meaning as well as their claims to validity only when considered as statements about artifacts whose production belongs to the shared know-how of a scientific community.

At the latest following Pufendorf's Jus naturae et gentium , the attempt to develop natural law out of one basic principle is prominent. Although John Locke characterizes Pufendorf's natural law as worthy of emulation and his own Treatises of Government reveal obvious traces of Pufendorf's ideas, still one fails to find any influence by the "basic-principle idea." Furthermore, Locke never explicates the mathematically demonstrative principle for law and morals, which he introduced in his Essay Concerning Human Understanding . Locke, however, does indicate in his Reasonableness of Christianity of 1695 that he sees the execution of such a program unrealistic at least by this point in time. He instead develops a form of heurism, which, in reliance on the New Testament , permits him to introduce a rational moral theory and a rational natural law. His natural law theory reveals its rationality not through its justification or by providing a systematic exposition, but rather by resisting any possible objections of reason.

Hugo Grotius und Thomas Hobbes stehen beide in unterschiedlicher Weise für einen Neubeginn in der Politischen Philosophie bzw. in der Rehtsphlosophie. Während bei Grotius die Anknüpfung an die vorangehende Tradition des Christlichen Naturrechts gleichwohl unübersehbar ist, ist Hobbes' Beziehung zum Naturrecht kontrovers. In der Konfrontation beider Autoren mit dem in der scholastischen Diskussion herausgearbeiteten Naturgesetzbegriff zeigt sich, wie die Auseinandersetzung zwischen den voluntaristischen und rationalistischen Positionen letztlich einer Rechts- und Moralphilosophie Bahn bricht, die sich von den theologischen Voraussetzungen des Christlichen Naturrechts befreien kann, ohne dabei mit diesem in unmittelbaren Widerspruch zu geraten oder auch nur dessen Begriffsrahmen zu sprengen. Durch eine strikte Trennung von Evaluationsproblem und Obligationsproblem eröffnet Grotius' De iure belli ac pacis das Feld einer säkularen Moralwissenschaft, welche Hobbes im Leviathan dann auf ein neues methodisches Fundament stellt und zudem durch eine säkulare Verpflichtungstheorie ergänzt. In different respects, Hugo Grotius and Thomas Hobbes represent a new beginning in political and legal philosophy. Although Grotius' connection with the previous tradition of Christian natural law is obvious, Hobbes' relation to natural law is controversial. Both of them, however, confront the concept of natural law as developed in the scholastic discussion. The ensuing debate between voluntarism and rationalism finally paves the way for a new philosophy of law and morals. This new philosophy can extricate itself from the theological presumptions of Christian natural law without running into contradiction with it, or even dissolving its conceptual framework. Through its strict division between evaluation and obligation, Grotius' De iure belli ac pacis opens the door for a secular moral science, which Hobbes in Leviathan places on a new methodological foundation and also expands upon through a secular theory of obligation

Contrary to popular assumption, Kant's theory of state experienced a major transformation during the period between "On the Common Saying" of 1793 and the "Metaphysical First Principles of the Doctrine of Right" of 1797. This transformation is primarily expressed in the systematic new formulation of the relationship between "noumenal state" and "phenomenal state". Kant's new system permits him, on the one hand, to develop the idea of state a priori from his theory of private right and thus to systematically incorporate central elements of the modern tradition, including Rousseau's "Contrat Social". On the other hand, it allows him to formulate the theory of state forms as a theory of the "phenomenal state", which in turn provides a tool for legal evaluation of the then current political events in revolutionary France. This article considers the differences between the Doctrine of Right and Kant's earlier works as well as the role Schlegel's review of Perpetual Peace played in stimulating Kant's new conception of the state. Kants Staatsphilosophie ist - entgegen der gängigen Auffassung - in der Zeit zwischen der Schrift zum 'Gemeinspruch' von 1793 und den 'Metaphysischen Anfangsgründen der Rechtslehre' von 1797 einer grundsätzlichen Wandlung unterworfen, welche in einer systematischen Neufassung des Verhältnisses von 'Staat in der Idee' und 'Staat in der Erscheinung' ihren entscheidenden Ausdruck findet. Diese neue Systematik ermöglicht es Kant einerseits, die Staatsidee a priori aus dem Privatrecht zu entwickeln und damit zentrale Bestandstücke der modernen Tradition - darunter das Rousseausche 'Ideal des Bürgerbundes' - systematisch einzubinden. Andererseits erlaubt sie es, die Staatsformenlehre als eine Lehre des 'Staates in der Erscheinung' zu fassen, womit sie ein Instrumentarium für die rechtliche Einordnung der aktuellen politischen Vorgänge im revolutionären Frankreich bereitstellt. - Auf die Differenzen der Rechtlehre gegenüber den früheren Schriften , sowie auf die Rolle der Schlegelschen Rezension des 'Ewigen Frieden' als Anlaß für Neukonzeption wird hingewiesen

In a famous passage in Perpetual Peace , Kant discusses a “natural guarantee“ of perpetual peace. Basically, this natural guarantee relieves human beings of the obligation to actively promote the development of law in the world, because one can expect it to develop anyway. Yet Kant calls the guarantee practical, meaning the guarantee has no direct prognostic value. One can see that this guarantee is merely a guarantee of success, which ensures that human conduct aimed toward attaining perpetual peace will always meet with natural conditions that do not rule out success from the start. Furthermore, this guarantee gives human beings the means of establishing external legal relationships within which even those persons who only follow their own interests will act externally in accordance with the law. In this way, the “natural guarantee“ prevents political leaders from escaping responsibility by claiming that attaining perpetual peace is impossible.

It is a widely accepted opinion that the Doctrine of Right is an imperfect product of Kant's later life, affected by the author's senility. This article shows (by focusing on the 'Right of a State') there is strong evidence that the printed version of 1797 delivers not the text Kant intended to publish, but an incorrect composition out of his manuscript, being assembled by third hand. In the paper the originally intended text is reconstructed by following the internal cross-references given by the author