Vol. 7 — October 2026
Cover of The Critique of Practical Reason

The Critique of Practical Reason

Immanuel Kant · English

The Critique of Practical Reason, published in 1788, is the second of Immanuel Kant's three critiques and extends the ethics of his Groundwork.

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Pagera Editor's Note

The Critique of Practical Reason, published in 1788, is the second of Immanuel Kant's three critiques and extends the ethics of his Groundwork. Kant argues that pure reason can by itself determine the will through the moral law, and he examines the principles, object, and motives of pure practical reason. The Dialectic takes up the highest good, the union of virtue and happiness, and argues that morality requires us to postulate freedom, the immortality of the soul, and the existence of God. A short Methodology follows, and the book closes with a reflection on the starry heavens above and the moral law within. This is Thomas Kingsmill Abbott's translation.

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