Theoretical and Practical Reason: A Critical Rationalist View
| Abstract | If the task of theoretical reason is to discover truth or reasons for belief, then theoretical reason is impossible. Attempts to circumvent this by appeal to probabilities are self-defeating. If the task of practical reason is to discover what we ought to do or what actions are desirable or valuable, then practical reason is impossible. Appeal to the subjective ought is self-defeating and often gives either a wrong answer or a self-contradictory one. I argue that the task of theoretical reason is to decide which propositions to instate; and that the task of practical reason is to decide which ought-propositions to act on. As a consequence theoretical reason is seen as a branch of practical reason. This approach makes both theoretical and practical reason practicable and free of the defects of the usual accounts. | |||||||||
| Keywords | evaluation scheme instate Popper practical reason pragmatic paradox self-contradiction theoretical reason Kolodny MacFarlane subjective | |||||||||
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Immanuel Kant (1909/2004). Critique of Practical Reason and Other Works on the Theory of Ethics. Barnes & Noble Books.
Robert Audi (2002). Prospects for a Naturalization of Practical Reason: Humean Instrumentalism and the Normative Authority of Desire. International Journal of Philosophical Studies 10 (3):235 – 263.
Garrath Williams, Kant's Account of Reason. Stanford Encyclopedia of Philosophy.
David Enoch (2011). Can There Be a Global, Interesting, Coherent Constructivism About Practical Reason? Philosophical Explorations 12 (3):319-339.
Andrews Reath (2010). Formal Principles and the Form of a Law. In Andrews Reath & Jens Timmermann (eds.), Kant's Critique of Practical Reason: A Critical Guide. Cambridge University Press.
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Lara Ostaric (2009). Kant's Account of Nature's Systematicity and the Unity of Theoretical and Practical Reason. Inquiry 52 (2):155 – 178.
Pauline Kleingeld (1998). Kant on the Unity of Theoretical and Practical Reason. Review of Metaphysics 52 (2):500-528.
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