The Critique of Practical Reason

Immanuel Kant's Critique of Practical Reason (Kritik der praktischen Vernunft, 1788) is the second of his three Critiques and the fullest statement of his moral philosophy. Where the first Critique limited theoretical knowledge to the world of appearances, the second establishes that pure reason can be practical—that the moral law, given a priori through the categorical imperative, determines the will and reveals human freedom. From the fact of the moral law Kant derives the 'postulates' of freedom, immortality, and God. The translation is T. K. Abbott's.

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