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Introduction

Published online by Cambridge University Press:  06 August 2010

Andrews Reath
Affiliation:
University of California, Riverside
Jens Timmermann
Affiliation:
University of St Andrews, Scotland
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Summary

The Critique of Practical Reason is Kant's second foundational work in moral theory after the Groundwork of the Metaphysics of Morals. Its stated aim is ‘merely to show that there is pure practical reason’ (CpV 5:3). That is, it attempts to show that reason by itself yields an objective principle of conduct that applies independently of individuals' preferences and empirically given aims – a principle that Kant identifies with the fundamental principle of morality – and thus to show that practical reasoning is not limited to instrumental and prudential reasoning as the empiricist tradition holds. To accomplish this aim, Kant tries to document the origin of the fundamental principle that underwrites common moral thought in reason (in ‘pure practical reason’) and to establish its overriding authority.

A ‘critique’ is a critical examination of a cognitive faculty that sets out its powers and limits, and in particular establishes the legitimacy of any a priori concepts and principles that structure the relevant domain of cognitive activity. Kant's views about the need for and proper focus of a critique of practical reason changed over time. When he published the Groundwork in 1785, he intended it to take the place of a critique of pure practical reason. He writes that although ‘there is really no other foundation for a metaphysics of morals than a critique of pure practical reason, just as that of metaphysics is the critique of pure speculative reason’, the need for the former is less urgent.

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Chapter
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Kant's 'Critique of Practical Reason'
A Critical Guide
, pp. 1 - 10
Publisher: Cambridge University Press
Print publication year: 2010

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  • Introduction
  • Edited by Andrews Reath, University of California, Riverside, Jens Timmermann, University of St Andrews, Scotland
  • Book: Kant's 'Critique of Practical Reason'
  • Online publication: 06 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511770869.002
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  • Introduction
  • Edited by Andrews Reath, University of California, Riverside, Jens Timmermann, University of St Andrews, Scotland
  • Book: Kant's 'Critique of Practical Reason'
  • Online publication: 06 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511770869.002
Available formats
×

Send book to Google Drive

To send content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about sending content to Google Drive.

  • Introduction
  • Edited by Andrews Reath, University of California, Riverside, Jens Timmermann, University of St Andrews, Scotland
  • Book: Kant's 'Critique of Practical Reason'
  • Online publication: 06 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511770869.002
Available formats
×