Kritik der reinen Vernunft / Zweite hin und wieder verbesserte Auflage (1787)

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Gutenberg ID

6343

Title

Kritik der reinen Vernunft / Zweite hin und wieder verbesserte Auflage (1787)

Language

de

Book source

Project Gutenberg

Description max 80 words

Immanuel Kant's seminal work critiques the limits of human reason, distinguishing between empirical knowledge and a priori principles. This edition explores the foundations of metaphysics, the nature of space and time, and the validity of traditional proofs for God's existence, offering a rigorous framework for philosophical inquiry.

Summary up to 500 words

In his *Critique of Pure Reason* (1787), Immanuel Kant undertakes a systematic examination of the powers and limits of human reason to establish a new science of knowledge. The work begins by distinguishing between analytic judgments, which merely explicate concepts, and synthetic judgments, which expand knowledge. Kant's central thesis is that synthetic a priori judgments—foundations of mathematics and physics—are possible, thereby validating metaphysics as a discipline rather than dismissing it as mere speculation. Kant introduces the Transcendental Aesthetic, arguing that space and time are not empirical concepts derived from experience but pure forms of human sensibility. In the Transcendental Analytic, he deduces the categories of understanding necessary to organize sensory data, emphasizing the 'original synthetic unity of apperception' as the supreme principle that unifies consciousness. He further establishes the principles of experience, including the persistence of substance, the law of causality, and the principle of community. The Transcendental Dialectic addresses the inevitable illusions of reason when it attempts to transcend the bounds of possible experience. Kant analyzes paralogisms regarding the soul, antinomies concerning the world's totality, and the ideal of a highest being. He rigorously refutes ontological, cosmological, and physicotheological proofs for God's existence, reinterpreting the concept of God not as a constitutive object of knowledge but as a regulative ideal guiding the systematic unity of nature. Similarly, he resolves the antinomies by distinguishing between phenomena (appearances) and noumena (things-in-themselves), asserting that while we cannot know the world as it is in itself, we can regulate our inquiry toward it. Finally, the Transcendental Methodology disciplines reason, distinguishing between dogmatic, skeptical, and critical approaches. Kant concludes that while metaphysics cannot serve as the foundation of religion, it must stand as its guardian. By subjecting reason to critical scrutiny, metaphysics protects morality and religion from the ravages of unchecked speculation, ultimately positioning itself as the completion of human cultural development and the safeguard of practical reason.

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Categories

• Classics
• Philosophy