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In philosophy, the word rationality has been used to describe numerous religious and philosophical theories, especially those concerned with truth, reason, and knowledge. Persons believing in a non-material conception of the self such as the mind or soul, understand rationality to be a key feature separating humans from animals. Continental rationalism is a school in which rationality and reason are the key methods by which we obtain knowledge, in opposition to empiricism which states that knowledge is obtained primarily via the senses.A logical argument is sometimes described as rational if it is logically valid. However, rationality is a much broader term than logic, as it includes "uncertain but sensible" arguments based on probability, expectation, personal experience and the like, whereas logic deals principally with provable facts and demonstrably valid relations between them. For example, ad hominem arguments are logically unsound, but in many cases they may be rational.
In economics, sociology, and political science, a decision or situation is often called rational if it is in some sense optimal, and individuals or organizationAlternative meaning: Organisation (band). An organization (also organisation in many Commonwealth countries) is a formal group of people with one or more shared goals. This topic is a broad one. According to management science, most human organizations fas are often called rational if they tend to act somehow optimally in pursuit of their goals. Thus one speaks, for example, of a rational allocation of resources, or of a rational corporate strategy. In this concept of "rationality", the individuals goals or motives are taken for granted and not made subject to criticism, ethical or otherwise. Thus rationality simply refers to the success of goal attainment, whatever those goals may be. Sometimes, in this context, rationality is equated with behavior that is self-interested to the point of being selfish. Sometimes rationality implies having complete knowledge about all the details of a given situation. See Rational choice theoryRational choice theory is a way of looking at deliberations between a number of potential courses of action, in which " rationality" of one form or another is used either to decide which course of action would be the best to take, or to predict which cour.
Debates arise in these three fields about whether or not people or organizations are "really" rational, as well as whether it make sense to model them as such in formal models. Some have argued that a kind of bounded rationalityMany models of human behavior in the social sciences assume that humans can be reasonably approximated or described as " rational" entities, especially as conceived by rational choice theory. Many economics models assume that people are "hyperrational", a makes more sense for such models. Others think that any kind of rationality along the lines of rational choice theory is a useless concept for understanding human behavior; the term homo economicusHomo economicus or Economic man is a term used for an approximation or model of homo sapiens that acts to obtain the highest possible well-being for himself given available information about opportunities and other constraints, both natural and institutio is largely in honor of this view.
Rationality is a central principle in Artificial Intelligence, where an rational agent is specifically defined as an agent which always chooses the action which maximises its expected performance, given all of the knowledge it currently possesses.
In a number of kinds of speech, "rational" may also denote a hodge-podge of generally positive attributes, including:
- reasonable: "having sound judgement" (Webster's)
- reasonable: "not extreme or excessive" (Webster's)
- justifiable on the basis of reason (as opposed to traditionA tradition is a story or a custom that is memorized and passed down from generation to generation, originally without the need for a writing system. Tools to aid this process include poetic devices such as rhyme and alliteration. The stories thus preserv or emotionIn psychology, and in ordinary language, emotion is used to describe a state of a person. Examples of emotions are fear, anger, joy, hate; see list of emotions. Emotional state is related to mood, sometimes even identified with it, although emotions are gal response).
- not foolish
- sane
- good
Useful contrasts may include:
- rational vs. emotional
- rational vs. creative
- rational vs. spiritual
- reason vs. divine truth
