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Overview

Critique of Practical Reason is a philosophical work written by Immanuel Kant and published in 1788. It presents Kant’s Doctrine of Elements, containing the Analytic of Pure Practical Reason and the Dialectic of Pure Practical Reason. The Analytic contains the arguments for the categorical imperative as the one true moral principle and for the identity of morality and freedom while the Dialectic exposes the primary error of all previous ethicists and proposes the postulates of pure practical reason. Critique of Practical Reason concludes with the Doctrine of Method, in which Kant proposes a new method for moral education.

Read the overall summary, five Questions & Answers about important topics, and explanations of important quotes from Critique of Practical Reason. Or, learn more by studying SparkNotes guides to other works by Immanuel Kant.

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