Practical reason


Practical reason

In philosophy, practical reason is the use of reason to decide how to act. This contrasts with theoretical reason (often called speculative reason), which is the use of reason to decide what to believe. For example: agents use practical reason to decide whether to build a telescope, but theoretical reason to decide which of two theories of light and optics is the best. Practical reason is understood by most philosophers as determining a plan of action. Thomistic ethics defines the first principle of practical reason as the "good is to be done and pursued, and evil is to be avoided."[1] For Kant, practical reason has a law abiding quality because the Categorical imperative is understood to be binding one to one's duty rather than subjective preferences. Utilitarians tend to see reason as an instrument for the satisfactions of wants and needs.

In classical philosophical terms, it is very important to distinguish three domains of human activity: theoretical reason, which investigates the truth of contingent events as well as necessary truths; practical reason which determines whether a prospective course of action is worth pursuing; and productive or technical reason which attempts to find the best means for a given end. Aristotle viewed philosophical activity as the highest activity of the human being and gave pride of place to metaphysics or wisdom. Since Descartes, practical judgment and reasoning have been treated with less respect because of the demand for greater certainty and an infallible method to justify beliefs.

In cognitive research, practical reason is the process of ignoring unproductive possibilities in favor of productive possibilities[citation needed]. It is considered a form of cognitive bias, because it is illogical[citation needed]. An example would be calling all hospitals to look for your missing child, but not checking morgues, as finding his corpse would be 'counter-productive.'

See also

References

  • Charles Blattberg, From Pluralist to Patriotic Politics: Putting Practice First, Oxford and New York: Oxford University Press, 2000, ch. 3. ISBN 0-19-829688-6. A critique of the conception of practical reason associated with pluralist moral and political philosophy in favour of a hermeneutical alternative.
  • Elijah Millgram, ed., Varieties of Practical Reasoning, Cambridge, Mass.: MIT Press, 2001. ISBN 0-262-63220-9.
  • Joseph Raz, ed., Practical Reasoning, Oxford: Oxford University Press, 1978. ISBN 0-19-875041-2.
  • Charles Taylor, "Explanation and Practical Reason," in Philosophical Arguments, Cambridge, Mass.: Harvard University Press, 1995. ISBN 0-674-66476-0.

External links


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • practical reason — noun 1. : reason concerned with the practical accomplishment of chosen ends contrasted with theoretical reason 2. Kantianism : the action or office of reason in matters of the will; specifically : the determination of the grounds or universal… …   Useful english dictionary

  • practical reason — (in Kantian ethics) reason applied to the problem of action and choice, esp. in ethical matters. [1895 1900] * * * Rational capacity by which (rational) agents guide their conduct. In Immanuel Kant s moral philosophy, it is defined as the… …   Universalium

  • practical reason — Most generally, any reasoning aiming at a conclusion concerning what to do. More specifically, Aristotle s attempt to analyse this process in terms of the practical syllogism . See also phronēsis …   Philosophy dictionary

  • practical reason — noun The use of reason to decide how to act …   Wiktionary

  • practical reason —  Практический разум …   Вестминстерский словарь теологических терминов

  • Critique of Practical Reason —   Cover of 1898 English edition of the Critique of Practical Reason …   Wikipedia

  • Pure practical reason — is the opposite to general practical reason and appears in Immanuel Kant s Groundwork of the Metaphysics of Morals .It is the reason which drives actions without any sensible incentives. Human reasoning do these actions simply because those… …   Wikipedia

  • Reason — • Article discussing various definitions of the term Catholic Encyclopedia. Kevin Knight. 2006. Reason     Reason     † …   Catholic encyclopedia

  • reason, practical —    Practical reason is the human ability to decide through reflection on the appropriate course of action. Since Socrates (Plato, Protagoras 345e) many philosophers have assumed that if one knows the right course of action, one will necessarily… …   Christian Philosophy

  • Reason — involves the ability to think, understand and draw conclusions in an abstract way, as in human thinking. The meaning of the word reason overlaps to a large extent with rationality and the adjective of reason in philosophical contexts is normally… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.