If there exists on any subject a philosophy (that is, a system of rational knowledge based on concepts), then there must also be for this philosophy a system of pure rational concepts, independent of any condition of intuition, in other words, a metaphysic. It may be asked whether metaphysical elements are required also for every practical philosophy, which is the doctrine of duties, and therefore also for Ethics.

What is morally permissible, and what is morally obligatory? These questions form the core of a vast amount of philosophical reasoning. In his Fundamental Principles of the Metaphysics of Morals, Immanuel Kant developed a basis for the answers. In this landmark work, the German philosopher asks what sort of maxim might function as a guide to appropriate action under a given set of circumstances. By universalizing such a maxim, would morally permissible...

Prompted by Hume's skepticism, Kant addresses the question of whether and how metaphysics is possible. Metaphysicians have yet to agree on one definite proposition, or even to establish a basis for agreement upon judgments. Kant distinguishes between a priori and a posteriori cognitions and between analytic and synthetic judgments. Knowledge we gain from experience is a posteriori, and what we can know independent of experience is a priori. A synthetic...

Taken from his lecture notes on his introductory course on logic, Kant's philosophies in "Logic" describe his thoughts on the mental process and how it should be applied in life. Kant never set out to write a book on the subject, but his graduate student Gottlob Jaesche gathered his mentor's lecture notes together and added his own observations and explanations to the preexisting text. Included in the philosophy are historical explanations of Kant's...

Collected in this 3-in-one omnibus edition are Kant's ground breaking critiques. The Critique of Pure Reason, The Critique of Practical Reason, and The Critique of Judgement. The Critique of Pure Reason is one of the most influential philosophy books of all times. Kant's influence on modern perception of reason cannot be over estimated. Here Kant redefines reason and gives us the tools to understand reason on two levels: the empirical and the metaphysical....

Contained in this volume is the first part of Immanuel Kant's Critique of Judgement, which is subtitled The Critique of Aesthetic Judgement and in which Kant discusses aesthetics and how as humans we decide what is beautiful and how in turn we respond to that beauty. Immanuel Kant, considered by many to be one of the most important philosophers of all time gives us much to consider on the nature of beauty in this intriguing exposition on the subject....

En 1790, nueve años después de la publicación de la Crítica de la razón pura, Immanuel Kant, poco dado a las polémicas y las controversias (ni aun siquiera las intelectuales), tomará la pluma para responder a uno de sus críticos más feroces, Johann August Eberhard, filósofo leibniziano y cordial enemigo de la revolución filosófica propuesta por Kant, había iniciado un duro ataque a la filosofía kantiana en las páginas de Philosophisches...

From the introduction: "The Science of Right has for its object the principles of all the laws which it is possible to promulgate by external legislation. Where there is such a legislation, it becomes, in actual application to it, a system of positive right and law; and he who is versed in the knowledge of this system is called a jurist or jurisconsult (jurisconsultus). A practical jurisconsult (jurisperitus), or a professional lawyer, is

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Arguably the most influential western philosophical mind since Aristotle, Immanuel Kant was born in 1724 in the Köningsberg, a city in Eastern Prussia where he would live his entire life. A lifelong academic, at sixteen years old Kant entered the University of Köningsberg, where he would go on to tutor for nine years, and then teach. Kant's major concerns involved both religion and science, as he sought reconciliation between the two. His writings...

No debe confundirse la Fundamentación de la metafísica de las costumbres con la que lleva por título general Metafísica de las costumbres. Aquélla tiene por objeto descubrir y exponer el principio fundamental de la moralidad y criticar su posibilidad. Ésta desenvuelve el sistema mismo de la moralidad, la teoría de los deberes y la del derecho. Aquélla es, pues, como los cimientos; ésta, como el edificio de la moralidad. Puede decírse, por...