Critique of Practical Reason

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Critique of Practical Reason

1788 German edition
Author	Immanuel Kant
Original title	Critik a der praktischen Vernunft
Translator	Thomas Kingsmill Abbott
Language	German
Subject	Moral philosophy
Published	1788
Media type	Print
Preceded by	Critique of Pure Reason
Followed by	Critique of Judgment
a Kritik in modern German.

Part of a series on
Immanuel Kant
Major works Critique of Pure Reason Prolegomena to​ Any Future Metaphysics "Answering the​ Question: What Is Enlightenment?" Groundwork of the Metaphysic of Morals Critique of Practical Reason Critique of Judgment Religion within the Bounds of Bare Reason Perpetual Peace The Metaphysics of Morals "On a Supposed Right to Tell Lies from​ Benevolent Motives" Opus Postumum
Kantianism • Kantian ethics Transcendental idealism Critical philosophy Sapere aude Thing-in-itself Schema A priori and a posteriori Analytic–synthetic distinction Noumenon Category Categorical imperative Hypothetical imperative "Kingdom of Ends" Political philosophy
People J. G. Fichte G. W. F. Hegel David Hume F. H. Jacobi Arthur Schopenhauer Baruch Spinoza
Related topics German idealism Neo-Kantianism
Category • Philosophy portal

The Critique of Practical Reason (German: Kritik der praktischen Vernunft) is the second of Immanuel Kant's three critiques, published in 1788. Hence, it is sometimes referred to as the "second critique". It follows on from Kant's first critique, the Critique of Pure Reason, and is one of his major works on moral philosophy. While Kant had already published one significant work in moral philosophy, the Groundwork of the Metaphysics of Morals (1785), the Critique of Practical Reason was intended to develop his account of the will as determinable by (or able to act from) the moral law alone, place his ethical views within the larger framework of his system of critical philosophy, and expand on certain themes in his moral philosophy such as the feeling of respect for the moral law and the concept of the highest good.