In
philosophy
Philosophy ('love of wisdom' in Ancient Greek) is a systematic study of general and fundamental questions concerning topics like existence, reason, knowledge, Value (ethics and social sciences), value, mind, and language. It is a rational an ...
, a quality is an attribute or a
property
Property is a system of rights that gives people legal control of valuable things, and also refers to the valuable things themselves. Depending on the nature of the property, an owner of property may have the right to consume, alter, share, re ...
characteristic of an
object
Object may refer to:
General meanings
* Object (philosophy), a thing, being, or concept
** Object (abstract), an object which does not exist at any particular time or place
** Physical object, an identifiable collection of matter
* Goal, an a ...
.
[Cargile, J. (1995). qualities. in Honderich, T. (Ed.) (2005). ''The Oxford Companion to Philosophy'' (2nd ed.). Oxford] In
contemporary philosophy
Contemporary philosophy is the present period in the history of Western philosophy beginning at the early 20th century with the increasing professionalization of the discipline and the rise of analytic and continental philosophy.
The phrase "con ...
the
idea
In philosophy and in common usage, an idea (from the Greek word: ἰδέα (idea), meaning 'a form, or a pattern') is the results of thought. Also in philosophy, ideas can also be mental representational images of some object. Many philosophe ...
of qualities, and especially how to distinguish certain kinds of qualities from one another, remains controversial.
Background
Aristotle
Aristotle (; 384–322 BC) was an Ancient Greek philosophy, Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, a ...
analyzed qualities in his
logic
Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical truths. It examines how conclusions follow from premises based on the structure o ...
al work, the
Categories. To him, qualities are
hylomorphically–formal attributes, such as "white" or "grammatical". Categories of ''state'', such as "shod" and "armed" are also non–
essential qualities ''(
katà symbebekós)''.
[ line 70.] Aristotle observed: "one and the selfsame substance, while retaining its identity, is yet capable of admitting contrary qualities. The same individual person is at one time white, at another black, at one time warm, at another cold, at one time good, at another bad. This capacity is found nowhere else... it is the peculiar mark of substance that it should be capable of admitting contrary qualities; for it is by itself changing that it does so".
[ line 254.] Aristotle described four types of qualitative opposites: ''correlatives,'' ''contraries,'' ''privatives'' and ''positives.''
[ line 28.]
John Locke
John Locke (; 29 August 1632 (Old Style and New Style dates, O.S.) – 28 October 1704 (Old Style and New Style dates, O.S.)) was an English philosopher and physician, widely regarded as one of the most influential of the Enlightenment thi ...
presented a distinction between primary and secondary qualities in ''
An Essay Concerning Human Understanding
''An Essay Concerning Human Understanding'' is a work by John Locke concerning the foundation of human knowledge and understanding. It first appeared in 1689 (although dated 1690) with the printed title ''An Essay Concerning Humane Understand ...
''. For Locke, a quality is an
idea
In philosophy and in common usage, an idea (from the Greek word: ἰδέα (idea), meaning 'a form, or a pattern') is the results of thought. Also in philosophy, ideas can also be mental representational images of some object. Many philosophe ...
of a
sensation or a
perception
Perception () is the organization, identification, and interpretation of sensory information in order to represent and understand the presented information or environment. All perception involves signals that go through the nervous syste ...
. Locke further asserts that qualities can be divided in two kinds: primary and secondary qualities.
Primary qualities are
intrinsic
In science and engineering, an intrinsic property is a property of a specified subject that exists itself or within the subject. An extrinsic property is not essential or inherent to the subject that is being characterized. For example, mass i ...
to an object—a thing or a person—whereas
secondary qualities
Secondary may refer to: Science and nature
* Secondary emission, of particles
** Secondary electrons, electrons generated as ionization products
* The secondary winding, or the electrical or electronic circuit connected to the secondary winding i ...
are dependent on the interpretation of the subjective mode and the context of appearance.
For example, a
shadow
A shadow is a dark area on a surface where light from a light source is blocked by an object. In contrast, shade occupies the three-dimensional volume behind an object with light in front of it. The cross-section of a shadow is a two-dimensio ...
is a secondary quality. It requires a certain
light
Light, visible light, or visible radiation is electromagnetic radiation that can be visual perception, perceived by the human eye. Visible light spans the visible spectrum and is usually defined as having wavelengths in the range of 400– ...
ing to be applied to an object. For another example, consider the
mass
Mass is an Intrinsic and extrinsic properties, intrinsic property of a physical body, body. It was traditionally believed to be related to the physical quantity, quantity of matter in a body, until the discovery of the atom and particle physi ...
of an object.
Weight
In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition.
Some sta ...
is a secondary quality since, as a
measurement
Measurement is the quantification of attributes of an object or event, which can be used to compare with other objects or events.
In other words, measurement is a process of determining how large or small a physical quantity is as compared to ...
of gravitational
force
In physics, a force is an influence that can cause an Physical object, object to change its velocity unless counterbalanced by other forces. In mechanics, force makes ideas like 'pushing' or 'pulling' mathematically precise. Because the Magnitu ...
, it varies depending on the
distance
Distance is a numerical or occasionally qualitative measurement of how far apart objects, points, people, or ideas are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria (e.g. "two co ...
to, and mass of, very massive objects like the
Earth
Earth is the third planet from the Sun and the only astronomical object known to Planetary habitability, harbor life. This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all ...
, as described by
Newton's law. It could be thought that mass is intrinsic to an object, and thus a primary quality. In the context of
relativity, the idea of mass quantifying an amount of
matter
In classical physics and general chemistry, matter is any substance that has mass and takes up space by having volume. All everyday objects that can be touched are ultimately composed of atoms, which are made up of interacting subatomic pa ...
requires caution. The
relativistic mass varies for variously traveling observers; then there is the idea of rest mass or
invariant mass
The invariant mass, rest mass, intrinsic mass, proper mass, or in the case of bound systems simply mass, is the portion of the total mass of an object or system of objects that is independent of the overall motion of the system. More precisely, ...
(the magnitude of the
energy-momentum 4-vector), basically a system's relativistic mass in its own
rest frame
In special relativity, the rest frame of a particle is the frame of reference (a coordinate system attached to physical markers) in which the particle is at rest.
The rest frame of compound objects (such as a fluid, or a solid made of many vibrati ...
of reference. (Note, however, that Aristotle drew a distinction between qualification and quantification; a thing's quality can vary in degree).
Conceptions of quality as metaphysical and ontological
Philosophy
Philosophy ('love of wisdom' in Ancient Greek) is a systematic study of general and fundamental questions concerning topics like existence, reason, knowledge, Value (ethics and social sciences), value, mind, and language. It is a rational an ...
and
common sense
Common sense () is "knowledge, judgement, and taste which is more or less universal and which is held more or less without reflection or argument". As such, it is often considered to represent the basic level of sound practical judgement or know ...
tend to see qualities as
related either to
subjective feeling
According to the '' APA Dictionary of Psychology'', a feeling is "a self-contained phenomenal experience"; feelings are "subjective, evaluative, and independent of the sensations, thoughts, or images evoking them". The term ''feeling'' is closel ...
s or to
objective fact
A fact is a truth, true data, datum about one or more aspects of a circumstance. Standard reference works are often used to Fact-checking, check facts. Science, Scientific facts are verified by repeatable careful observation or measurement by ...
s. The qualities of something depends on the criteria being applied to and, from a
neutral point of view
Neutral or neutrality may refer to:
Mathematics and natural science Biology
* Neutral organisms, in ecology, those that obey the unified neutral theory of biodiversity
Chemistry and physics
* Neutralization (chemistry), a chemical reaction in ...
, do not determine its value (the
philosophical value as well as
economic value
In economics, economic value is a measure of the benefit provided by a goods, good or service (economics), service to an Agent (economics), economic agent, and value for money represents an assessment of whether financial or other resources are ...
). Subjectively, something might be
good
In most contexts, the concept of good denotes the conduct that should be preferred when posed with a choice between possible actions. Good is generally considered to be the opposite of evil. The specific meaning and etymology of the term and its ...
because it is
useful, because it is
beautiful, or simply because it
exists. Determining or finding qualities therefore involves
understanding
Understanding is a cognitive process related to an abstract or physical object, such as a person, situation, or message whereby one is able to use concepts to model that object.
Understanding is a relation between the knower and an object of u ...
what is useful, what is beautiful and what exists. Commonly, ''quality'' can mean degree of excellence, as in, "a quality product" or "work of average quality". It can also refer to a property of something such as "the
addictive quality of
nicotine
Nicotine is a natural product, naturally produced alkaloid in the nightshade family of plants (most predominantly in tobacco and ''Duboisia hopwoodii'') and is widely used recreational drug use, recreationally as a stimulant and anxiolytic. As ...
". In his book, ''
Zen and the Art of Motorcycle Maintenance'',
Robert M. Pirsig examines concepts of quality in
classical and
romantic, seeking a
Metaphysics of Quality and a reconciliation of those views in terms of
non-dualistic holism
Holism is the interdisciplinary idea that systems possess properties as wholes apart from the properties of their component parts. Julian Tudor Hart (2010''The Political Economy of Health Care''pp.106, 258
The aphorism "The whole is greater than t ...
.
Quality (Latin: quality, characteristic, property, condition) has three meanings:
a) neutral: the sum of all properties of an object, system or process
b) evaluates: the quality of all properties of an object, system or process
c) evaluates: the individual values preceding the action and its results
With regard to points a) and b), quality is the designation of a perceptible state of systems and their characteristics, which is defined in this state in a certain period of time based on certain properties of the system. Quality could describe a product such as wine and its chemical components and the resulting subjectively assessable taste, as well as the processes of ripening the grape, the production and distribution of the wine, or the process of managing the winery. In the meaning b) one speaks of quality wine or wine with predicate or of excellent management.
With reference to c), quality is the sum of the individual (value) attitudes (properties) of a target-oriented individual. Quality is differentiated by "having" or "being". The aim to which qualitative action is directed towards goals or effects also has fundamental effects on the creation of long-term growing cultural capital and thus on the existence of trust values in a cooperating, stable, and in particular democratic society.
See also
*
Similarity (philosophy)
In philosophy, similarity or resemblance is a relation between objects that constitutes how much these objects are alike. Similarity comes in degrees: e.g. oranges are more similar to apples than to the moon. It is traditionally seen as an interna ...
References
External links
*
{{DEFAULTSORT:Quality (Philosophy)
Concepts in aesthetics
Concepts in ethics
Metaphysical properties