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This article seems to be consistent and the information is up-to-date. This has a neutral tone and does not show any biased position. Resources supports the claims in article. The information came from multiple books and articles. I feel like you should also find some recent resources with this article to support this. However, mentioned "others" in the first paragraph. I know that it is to keep it simple, but you could find or mention a few people who show portrait of their owners.

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= Avempace: =

Biography:

Avempace had a talent for singing and composition in music. In the beginning of career, he wrote the manuscript Risālah fī l-alḥān (Tract on melodies) and incorporated his commentary on al-Fārābī’s treatise based on music. He determined the correlations between different melodies and temperament. According to biographer al-Maqqarī, Avempace's passion for music was due to poetry and had “the virtue of dispelling the sadness and pain of the hearts [sic].” He included his scientific knowledge and wit in many poems.

Philosophy:

Upon his unplanned trip to Egypt, Avempace wrote Risālat al-wadāʿ (Letter of bidding farewell) and Risālat al-ittiṣāl al-ʿaql bi al-insān (Letter on the union of the intellect with human beings) that were dedicated to Ibn al-Imām. His famous works included Tadbīr al-mutawaḥḥid (Management of the solitary), the Kitāb al-nafs (Book on the soul), and the Risāla fī l-Ghāya al-insāniyya (Treatise on the objective of human beings). The reflections of his famous accomplishments show how these were written near the end of his life. He was inspired based on Aristotelian line. In Avempace's philosophy, it contains two key pillars, solitude and conjunction. Solitude represents the isolation philosopher commonly seeks in order to protect himself from the corruption of society and conjunction refers to the philosopher’s quest for the lowest celestial intelligence. It is required for the human soul development.

These works are tough to understand. Nevertheless, Risālat al-ittiṣāl has interpreted the introduction. The treatise stated the overall point of Avempace's thinking: "'The ultimate end of man, namely the contemplation of truth, with the active intellect joining the human intellect in a contemplative and almost mystic way.'"However, the most important idea from Avempace's system was not mentioned in the treatise, "how the union of the active intellect with man occurs, which is the ultimate goal being pursued by the solitary."

In addition, Avempace had changed forgotten non-syllogistic arts into “practical arts”, and wrote:"'If some of them [the practical arts] employ syllogisms as medicine and agriculture do, they are not called syllogistic because their purpose is not [to convince another] nor to employ syllogisms, but to do some activity.'"He wrote nine medical treatises. Galen inscribed commentary on Hippocrates’ Aphorisms in “Commentary on Aphorisms” that includes Avempace’s view about medicine. Medical syllogisms are revolved by means of experience.

Experience is obtained in a person’s life time through perception. Avempace defines experience:"'As man’s reliance on perception to know particular [aspects, juz’iyyat] of some matter so that some science results from this perception.""Experience is said in general and in particular. If it is said in general, it points out that perception intents knowing particular [aspects] of a matter, from which a universal proposition results. The particular [instances] may take place either by man’s will or naturally.'"Avempace considers experience as the second essential part of medicine.

Avempace’s theoretic system sketched out all reality. Reality comes in many forms that include motion and action. Avempace categorizes them between natural and artificial. Natural reality forms move bodies with power while bodies within artificial reality forms are unintentionally moved. It also shows how the body is viewed."“Art (sina‛a) is the elaborated form abstracted from matter; it is abstracted from its matter. The artificial form which exists in its matter does not have any power to move that which is in it nor to move something else. This is the difference between artificial and natural forms.'"This example also represents the use of motion:"“If there is a house, there is a foundation by necessity, and this kind of necessity is a relationship between the causes of the existing [object] and the final [cause]. If [the final cause] is described, the various kinds of the causes follow it by necessity, and the form acts in a similar way.""If the form is the final [cause] of a motion, motion follows it by necessity, and it is something evident because, if there is building activity, there will be a house, and if there is building, there is the art of construction, but if there is only the art of construction, there will be no building. If [form] is acquired ‘by design,’ the other causes result in an orderly way from the final cause by necessity.”"This shows as human involvement is design. Absolute necessity reigns over the heavens. Avempace views necessity into three kinds: absolute, design, and material. Avempace demonstrates the moon eclipses using absolute necessity over time. Based on the relations of the moon eclipses, Avempace indicates “possibility shares necessity”.

Astronomy:

Avempace worked under the mathematician Ibn al-Sayyid. He was given the privileged to add a commentary to Ibn al-Sayyid's work on geometry and Euclid's Elements. Furthermore, he viewed astronomy as part of mathematics. Avempace's model of the cosmos consists of concentric circles, but no epicycles.