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Eclecticism is a conceptual approach that does not hold rigidly to a single paradigm or set of assumptions, but instead draws upon multiple theories, styles, or ideas to gain complementary insights into a subject, or applies different theories in particular cases. It can sometimes seem inelegant or lacking in simplicity, and eclectics are sometimes criticized for lack of consistency in their thinking. It is, however, common in many fields of study. For example, most psychologists accept certain aspects of behaviorism, but do not attempt to use the theory to explain all aspects of human behavior. A statistician may use frequentist techniques on one occasion and Bayesian ones on another.
Eclecticism was first recorded to have been practiced by a group of ancient Greek and Roman philosophers who attached themselves to no real system, but selected from existing philosophical beliefs those doctrines that seemed most reasonable to them. Out of this collected material they constructed their new system of philosophy. The term comes from the Greek "ἐκλεκτικός" (eklektikos), literally "choosing the best" and that from "ἐκλεκτός" (eklektos), "picked out, select". Well known eclectics in Greek philosophy were the Stoics Panaetius and Posidonius, and the New Academics Carneades and Philo of Larissa. Among the Romans, Cicero was thoroughly eclectic, as he united the Peripatetic, Stoic, and New Academic doctrines. Further eclectics were Varro and Seneca.
Architecture and art 
The term eclecticism is used to describe the combination, in a single work, of elements from different historical styles, chiefly in architecture and, by implication, in the fine and decorative arts. The term is sometimes also loosely applied to the general stylistic variety of 19th century architecture after Neo-classicism (c. 1820), although the revivals of styles in that period have, since the 1970s, generally been referred to as aspects of historicism.
Eclecticism plays an important role in critical discussions and evaluations but is somehow distant from the actual forms of the artefacts to which it is applied, and its meaning is thus rather indistinct. The simplest definition of the term—that every work of art represents the combination of a variety of influences—is so basic as to be of little use. In some ways Eclecticism is reminiscent of Mannerism in that the term was used pejoratively for much of the period of its currency, although, unlike Mannerism, Eclecticism never amounted to a movement or constituted a specific style: it is characterized precisely by the fact that it was not a particular style.
Eclecticism is recognized in approaches to psychology that see many factors influencing behavior and the psyche, and among those who consider all perspectives in identifying, changing, explaining, and determining behavior.
Martial arts 
Some martial arts can be described as eclectic in the sense that they borrow techniques from a wide variety of other martial arts. The way of thinking developed by Bruce Lee and often used in martial arts, called Jeet Kune Do, is classified as an eclectic system. It favors borrowing freely from other systems within a free floating framework. As with other disciplines that incorporate eclecticism, Jeet Kune Do does not hold rigidly to a single paradigm or set of assumptions or conclusions, but encourages students to learn what is useful for themselves. There is also Hapkido, a Korean martial art composed of throws, pressure points, and kicks, many taken from Chinese Chin Na, Shaolin (or more generally, Chinese) Eagle Claw kung fu, Japanese Judo, and Korean Taekwondo, as well as Kajukenbo, a martial art which draws from Kempo Karate, Judo, Wushu, Escrima, Boxing, Tang Soo Do, and Jujutsu.
In philology 
In textual criticism, eclecticism is the practice of examining a wide number of text witnesses and selecting the variant that seems best. The result of the process is a text with readings drawn from many witnesses. In a purely eclectic approach, no single witness is theoretically favored. Instead, the critic forms opinions about individual witnesses, relying on both external and internal evidence.
Since the mid-19th century, eclecticism, in which there is no a priori bias to a single manuscript, has been the dominant method of editing the Greek text of the New Testament (currently, the United Bible Society, 4th ed. and Nestle-Aland, 27th ed.). Even so, the oldest manuscripts, being of the Alexandrian text-type, are the most favored, and the critical text has an Alexandrian disposition.
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In philosophy, Eclectics use elements from multiple philosophies, texts, life experiences and their own philosophical ideas. These ideas include life as connected with existence, knowledge, values, reason, mind, and language.
In religion, Eclectics use elements from multiple religions, applied philosophies, personal experiences or other texts and dogma to form their own beliefs and ideas, noting the similarities between existing systems and practices, and recognizing them as valid. These ideas include life, karma, the afterlife, God and Goddess, the Earth, and other spiritual ideas. Some use a mix of Abrahamic, Dharmic, Neopagan, Shamanism, Daoic doctrines, New Age, religious pluralism and Syncretism. Eclectics are most interested in what really works, personally and communially.
See also 
- Eclecticism in architecture
- Eclecticism in art
- Eclecticism in music
- Eclecticism in textual criticism
- Eclectic medicine
- Freeform (radio format)
- "Városképe a világon egyedülállóan egységes", Hungarian Wikipedia, quoted in "Eklektikus építészet: XIX. század".
- Encyclopædia Britannica - in philosophy and theology, the practice of selecting doctrines from different systems of thought without adopting the whole parent system for each doctrine
- ἐκλεκτικός, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library
- ἐκλεκτός, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus Digital Library
- The Architecture of Choice: Eclectism in America, 1880-1910. by Leonard K. Eaton, 1975
- Aland, B. 1994: 138
- Media related to Eclecticism in art at Wikimedia Commons