A new translation of Immanuel Kant's famous "Critique of Practical Reason", one of his three core critiques, from the original German manuscript first published in 1788. This new edition contains an afterword by the translator, a timeline of Kant's life and works, and a helpful index of Kant's key concepts and intellectual rivals. This translation is designed for readability, rendering Kant's enigmatic German into the simplest equivalent possible, and removing the academic footnotes to make this critically important historical text as accessible as possible to the modern reader. Kants 1788 Critique of Practical Reason is the second of his major triad of critical philosophical critiques. It builds upon his Pure Reason and the Groundwork for the Metaphysics of Morals in delineating his theory of moral justification. The Critique of Pure Reason answers the question, "What can I know?", while Practical Reason answers "what should I do?". Practical Reason primarily concerns the relationship of Reason to morality. It is the Imperative in the Categorical Imperative. Morality is not a feeling or perception, but a reality to submit to. Kant's Practical Reason is a critical text to understand the view of Reason as Teleological, a uniquely German view, in contrast to the English Empiricist view (Hume, Locke, and Descartes) view is that Reason is the slave of the passions and can tell us nothing about morality and ethics. The teleological view, which is found clearly and explicitly in Kant and all German Idealists after him, is both normative and descriptive, or in other words, Imperative. The entire Frankfurt school of thought operates off of a version of this metaphysical view, all the way to Theodor W. Adorno's Aesthetics which is rooted in a Teleological view of reason.