This is the original Arabic text of three philosophical questions raised by Tusi (1201–1274) in his letter to Khusrawshahi (1184-1254). These critical questions are related to three main fields of philosophy: Philosophy of Nature, Philosophical Psychology (or Philosophy of the Soul) and Philosophical Theology which is traditionally subsumed as one of the proper subtopics of Metaphysics. Although Tusi did not receive any recorded response from Khusrawshahi, his short letter attracted considerable scholarly attention and received some remarkable responses, in (...) later Islamic philosophy and thus provided an exemplar of the traditional technique of debating by way of “question-answer” correspondence. (shrink)

This is a translation of three philosophical questions raised by Tusi (1201–1274) in his letter to Khusrawshahi (1184-1254). These critical questions are related to three main fields of philosophy: Philosophy of Nature, Philosophical Psychology (or Philosophy of the Soul) and Philosophical Theology which is traditionally subsumed as one of the proper subtopics of Metaphysics. Although Tusi did not receive any recorded response from Khusrawshahi, his short letter attracted considerable scholarly attention and received some remarkable responses, in later Islamic (...) philosophy and thus provided an exemplar of the traditional technique of debating by way of “question-answer” correspondence. (shrink)

In developing a theory of truth, as the main condition of knowledge, four issues are usually examined: definition or analysis of truth, truth bearer, truth-maker, and relation (in correspondence and coherence theories). A proper theory of truth is the one that affords the explanation of the truth of all types of propositions, and, at the same time, resists the liar paradox. The aim of this inquiry is to analyze Nasīr al-Dīn al-Tūsī’s theory of truth one who is involved both in (...) the liar paradox and in the explanation of the truth of the verity propositions and propositions that are made of intelligibles that have no instance in external world. This inquiry shows, with an analytical approach mostly systematic analysis, that he regards, against the difficulty of the lair paradox, propositions that are other than what they are about as the bearers of truth. Further, it shows that he, against the other difficulty, has two attitudes: first, he desists from the correspondence theory of truth and defines it as “ascription of an ideational thing to what, with its characteristic, is proper for it”; second, he considers the agent intellect to be the truth-maker. Although he regards the correspondence relation as an intentional relation, he does not discuss it much. One explanation could be that the issue of the correspondence relation does not play a serious part in the aforementioned difficulties. (shrink)

This essay deals with a selected part of an epistemological controversy provided by Tūsī in response to the skeptical arguments reported by Rāzī that is related to what might be called "intellectual skepticism," or skepticism regarding the judgments of the intellect, particularly in connection with self-evident principles. It will be shown that Rāzī has cited and exposed a position that seems to be no less than a medieval version of empiricism. Tūsī, in contrast, has presented us with a position that (...) rejects such empiricism. The comparative aim of this essay is to draw attention to some similarities as well as some points of divergence between the kind of skeptical debate we are focusing on here, and some relevant epistemological discussions in the later traditions in the West. ". (shrink)

After Al-Tusi and his effective work- which is called Nasirian Ethics- Islamic Philosophical Ethics emerges a fixed perspective that tips the balance (scale) in favor of otherworldly Eudemonia and considers worldly Eudemonia as rental land which can be abandoned. Ibn Khaldun tries to present a communicative theory; but his work has limited under the main discourse of Islamic Ethics which is fixed in the space and effect of the mentioned balance. As a consequence, after Mulla Sadra and in Esfahan (...) school, the Nasirian though is developed. then the main challenge is that the social development is slowed diminished in favor of individual Eudemonia. But it seems that Tabatabai in his theory (Constructional Perceptions) shows or reconstructs an almost unanimous consensus which tries to find a compromise between temporal (worldly) and eschatological (otherworldly) Eudemonia. In this paper and according to its descriptive- analytic prospect- with memorizing a historical transformation- Tabatabai 's theory is supposed as an alternative for reconstituting of Islamic Philosophical Ethics, which is based on the popular goodness and civil development. (shrink)

Seeking for Happiness in Islamic Philosophy and its goal, it can be seen a literal and unanimous answer in philosopher words which reflects combination of worldly(secular) and otherworldly(sacred) happiness that it can prepare temporal and eschatological happiness. But in a deeper investigation we can ask: what is the main purpose? mortal or final dimension of happiness? As a result of the text, it seems that from Al- Kendi to Al- Rāzī the otherworldly happiness is considered as a result of worldly (...) happiness. After Al- Farabi to Al- Tusi the flow of thinking tends to combine worldly and otherworldly happiness. After Al- Tusi and under the influence of him in Nasirian Ethics (Akhlaq-i Nasiri), the changed version of philosophical Islamic Ethics supports eschatological happiness and supposes the worldly happiness as a primary and elementary level which must be considered as healing of mortal life. Matching with this view, it seems that worldly happiness is Abolished, because it changes the balance between and worldly and otherworldly happiness, and also it week the social development instead of increasing individual happiness. (shrink)

Extensive scientific, philosophical and artistic activities were carried out in the Islamic World’s various science and civilization centers during the early Middle Ages. In these centers, noteworthy works of mathematics, astronomy, geography, medicine, pharmacology, optics, botany, chemistry and other fields of science, which would later determine improvement paths for these fields, were created. Abu al-Izz Ismail ibn al-Razzaz al-Jazari (12th-13th centuries), was a magnificent Muslim scientist known for his work named The Book of Knowledge of Ingenious Mechanical Devices (Kitab fi (...) ma‘rifati’l-hiyal al-handasiyya) and he was born in geography where many scientists were trained. He contributed to the development of science and civilization, the joint legacy of humanity and demonstrated his true capability and success in the field of ilm al-hiyal (the scientific field which addresses the information and practices regarding mechanical technology and engineering in Islamic science history). From this perspective, it is evident that al-Jazari had a wide field of interest, made his mark in the age he lived in with his brave and innovative ideas, and was a wise engineer. al-Jazari’s detailed descriptions and explanations of water clocks, oil lamp clocks and water pumping machines, as well as their construction, were astounding. In addition, al-Jazari’s studies on metal casting techniques, cone valves, wheel balance and the real-world use of aspiration tubes are important in contemporary engineering studies. When all these are considered, it becomes clear that his designation as the “Leonardo da Vinci of the Islamic World” is not a coincidence. Many studies on al-Jazari’s scientific legacy have been conducted in various parts of the world. There are various manuscripts of his aforementioned book. Based on these manuscripts, the work has been -fully or partially- translated into many languages, including Turkish. The German and English translations served as a basis for studies on al-Jazari in other languages. In recent years, studies conducted on al-Jazari in Türkiye (books, articles, domestic and international symposiums, congresses etc.) have demonstrated his brilliance and competence as a scientist. Furthermore, studies on al-Jazari are still ongoing in Türkiye. As for Russia, the scientific legacy of the scientists raised in the Islamic World such as Avicenna, al-Farabi, Abu Bakr al-Razi, Abu Rayhan al-Biruni, Abu al-Qasim al-Zahrawi, Muhammad ibn Musa al-Khwarizmi, al-Battani, al-Kashi, Abd al-Rahman al-Khazini, Nasir al-Din al-Tusi was researched within the scope of a special plan and program. Depending on the relevant studies, al-Jazari and his work drew attention as well. A small portion of the aforementioned Russian studies is known in Türkiye. It is safe to assume that al-Jazari studies in Russia are virtually unknown in Türkiye. The present study primarily aims to contribute to the literature on the scientific legacy of al-Jazari, a Middle Age Islamic scientist best known for his famous work in the mechanical field. More specifically, the present study aims to: 1) to identify the studies on al-Jazari in Russia, and in the former USSR countries, where academic studies are still in Russian after the Soviet Union period, to create a chronological biography and to set forth their compilation; in other words, to create a bibliography which includes Russian studies on al-Jazari; 2) to provide information on the structure and content of the studies in question, to detect the methodological issues encountered in these works, and make solution recommendations to solve these issues; 3) to contribute to continuing and future studies in Türkiye on al-Jazari in terms of source and material index. In conclusion, it should be stated that comparative reading was conducted centered on The Book of Knowledge of Ingenious Mechanical Devices (Kitab fi ma‘rifati’l-hiyal al-handasiyya). It should also be noted that Russian popular internet publications (which are not based on academic research and are created/reproduced for commercial and personal purposes) were excluded from the assessment. (shrink)

Azərbaycan elm tarixini tədqiq edərkən dövrün tələbindən çıxış edilərək ərəb və fars dillərində yazılmış çoxlu əsərlərə rast gəlirik. Bu əsərlərdən biri də dahi alim Nəsirəddin Tusinin fars dilində məntiqə dair yazdığı Əsasül-iqtibas əsəridir. Əsər ilk dəfə 2022-ci ildə nəşr edilərək oxucu və tədqiqatçıların ixtiyarına verilmişdir. Əsasül-iqtibas əsəri XIII əsrin ortalarında yazılmışdır. Əsərin yazılmasından təqribən səkkiz əsrə yaxın vaxt keçmişdir. Bu müddət ərzində həmin əsərdə istifadə edilən bir sıra termin və sözlər artıq müasir fars dilində istifadə edilmir. Əsərin məntiqə aid olması (...) və həm də bir sıra sözlərin günümüzdə istifadə edilməməsi onun tərcüməsini çətinləşdirən amillər kimi qeyd etmək olar. Bundan əlavə burada istifadə edilən bəzi terminlərin gündəlik danışığımzda fərqli mənada istifadə edildiyindən həmin sözlərin və terminlərin izah edilməsi zərurəti yaranmışdır. Habelə orta əsr müəlliflərinin əsərlərinin tədqiqi zamanı eyni bir sözün müxtəlif müəlliflər tərəfindən fərqli mənalarda işlədildiyinin də şahidi oluruq ki, bu da həmin termin və anlayışların Azərbaycan dilinə tərcüməsi zamanı izahının verilməsinə ehtiyac yaradır. Hal-hazırda müraciət etdiyiniz bu kitab Nəsirəddin Tusinin ən mühüm və genişhəcmli əsərlərindən biri olan “Əsasül-iqtibas”-ın tərcüməsi zamanı əsərin orijinalında işlədilmiş ərəb-fars sözlərinin izahlı tərcüməsi yönündə tərtib edilmişdir. Bu lüğətlərin tərcüməsi və izahı ilə tanış olmaqla Nəsirəddin Tusinin ərəb-fars dillərində yazılmış digər əsərlərinin tərcüməsi zamanı da yararlanmaq olar. Müəyyən bir ixtisas və peşəni və ya həmin peşə və ixtisasa aid olan terminləri başa düşmək üçün həmin istiqamət üzrə tərtib edilən terminolji lüğətlərə ehtiyac duyulur. Bu istiqamətdə zaman-zaman müxtəlif ixtisaslar üzrə terminoloji lüğətlərin nəşr edildiyini müşahidə edirik. Azərbaycan dilində məntiqi terminlərin izahından ibarət xüsusi termonoloji lüğətlərin də tərtib edilməsi zərurəti vardır. Çünki məntiq terminlərinin izahınına adətən rus dilində yazılmış ədəbiyyatda, bir neçə terminin izahı verilmiş məntiq kitablarında və ya fəlsəfi terminlərdən ibarət ensiklopediya və lüğətlərdə rast gəlmək mümkündür. Bir tərəfdən, yaranmış boşluğu doldurmaq, digər tərəfdən isə məntiq ixtisası üzrə təhsil alan tələbə və mütəxəssislərə kömək etmək üçün bu lüğəti tərtib etmək qərarına gəldik. 222 sözün izah və tərcüməsindən ibarət olan bu kitabı həmin istiqamətdə olan boşluğu doldurmaq üçün kiçik və eyni zamanda mühüm bir addım hesab etmək olar. Burada sözlərin tərcüməsi ilə yanaşı bir sıra terminlərin izahı da verilmişdir. Əsasən Əsasül-iqtibas adlı məntiqi əsəri tərcümə edərkən qarşıya çıxan çətin və mürəkkəb sözlərin izahının verilməsinə üstünlük verilmişdir. Tərcümə zamanı müxtəlif illərdə nəşr edilən Əsasül-iqtibas əsərlərinə də müraciət edilmişdir. Bu əsərlərin bəzisində Əsasül-iqtibas əsərində istifadə edilən bəzi terminlərin izahı da verilmişdir. Bu izahlar bəzən tərcümə zamanı ifadənin daha səlis və daha dəqiq başa düşülməsinə imkan vermişdir. Bu lüğət kitabı tərtib edilərkən həmin əsərlərdə mövcud olan terminlər və onların izahından da istifadə edilmişdir. Bəzən məntiqi terminlərlə yanaşı kəlam, fəlsəfə və s. elmlərdə istifadə edilən terminləri də qeyd etmişik. Çünki bu terminlər bizə məntiqdə işlədilən bəzi ifadələrin daha asan başa düşülməsinə imkan verəcəkdir. “Əsasül-iqtibasa dair terminlər” lüğəti adlı bu kitabı bu sahədə atılmış ilk addımlardan biri olduğu üçün gələcəkdə daha sanballı və həcmcə daha geniş terminoloji lüğətlərin hazırlanması nəzərdə tutulur. (shrink)

We describe the earliest occurrences of the Liar Paradox in the Arabic tradition. e early Mutakallimūn claim the Liar Sentence is both true and false; they also associate the Liar with problems concerning plural subjects, which is somewhat puzzling. Abharī (1200-1265) ascribes an unsatisfiable truth condition to the Liar Sentence—as he puts it, its being true is the conjunction of its being true and false—and so concludes that the sentence is not true. Tūsī (1201-1274) argues that self-referential sentences, like the (...) Liar, are not truth-apt, and defends this claim by appealing to a correspondence theory of truth. Translations of the texts are provided as an appendix. (shrink)

This article discusses Ibn Sīnā’s reasons for upholding the eternity of the world in his major philosophical writings and the ensuing heated debate between his detractors (al-Ghazālī, al-Shahrastānī and al-Rāzī) and supporters (al-Ṭūsī and al-Āmidī). I argue that notwithstanding the responses and surrejoinders it had elicited, Ibn Sīnā’s position on the issue is indeed coherent and irrefutable, since he distinguishes three modes of eternity, corresponding to the hierarchy of beings which he introduced, namely, (i) absolutely eternal (by virtue of itself); (...) (ii) relatively eternal (by virtue of something else); and (iii) not eternal both considered per se as well per aliud. With this distinction he evades both horns of the dilemma: either the universe is eternal or it is not eternal. On Ibn Sīnā’s account, therefore, the universe is both eternal and not eternal. It is eternal because the efficient cause that necessitates and sustains its existence is eternal, but also not eternal in view of its essential contingency. (shrink)

Originally introduced by Plato and Aristotle, Moderation Theory in Ethics is the most prevalent theory of ethics among Islamic scholars. Moderation Theory suggests that every virtue or excellence of character lies in the mean between two vices: excess or defect. Every ethical virtue comes from moderation in actions or emotions and every ethical vice comes from excess or defect. This paper suggests that while Islamic scholars have been influenced by this doctrine, they have also developed and re-conceptualized it in innovative (...) ways. Kindī, Miskawayh, Avicenna, Rāghib Isfahānī, Nasīr al-Dīn Ṭusī, and others are among the Islamic contributors to the subject. Some of their innovations in this theory are as follows: bringing together Aristotle's doctrine of the mean with Plato's psychology (by Kindī), dividing virtues into four higher genuses, dividing vices into eight higher genuses, setting various kinds of vices and virtues under these higher genuses (by Miskawayh), adding the vice qualitative criteria to Aristotle's vice quantitative criteria (excess and defect) (by Ṭusī), dividing various conceptualizations of justice (by Avicenna), adding religious and mystical virtues into the existing list of virtues (by Rāghib Isfahānī), and proposing a comprehensive model for curing diseases of the soul. This paper seeks to establish the main contributions of these Muslim scholars to Moderation Theory and elaborate on this theory’s evolution within the Islamic world. (shrink)

Originally introduced by Plato and Aristotle, the doctrine of the mean is the most prevalent theory of ethics among Islamic scholars. According to this doctrine, every virtue or excellence of character lies in the observance of the mean, whereas vices are the excess or deficiency of the soul in his functions. Islamic scholars have been influenced by the doctrine, but they have also developed and re-conceptualized it in innovative ways. Kindi, Miskawayh, Avicenna, Raghib Isfahani, Nasir al-Din Tusi, and others (...) are among the Islamic contributors to the subject. Some of their contributions are as follows: bringing together Aristotle's doctrine of the mean with Plato's psychology, dividing virtues into four higher geniuses, dividing vices into eight higher geniuses, setting various kinds of vices and virtues under these higher geniuses, adding the criteria of quality to Aristotle's quantitative evaluation of excess and deficiency, dividing various conceptualizations of justice, adding religious and mystical virtues into the existing list of virtues, and proposing a comprehensive model for curing diseases of the soul. (shrink)

Bu tezimizde klasik İslam düşüncesine, Yunan felsefesiyle olan irtibatına, klasik İslam düşüncesinde astronomi ve astroloji alanlarının oluşumu, gelişimi, bu alanlar içerisinde gerçekleşen düşünce üretimi ve astronomi- astrolojinin kozmoloji ile olan ilişkisi ele alınmaya çalışılmıştır. İlk bölümde İslam düşüncesinin ortaya çıkışına ve bu düşünce geleneği içerisinde geniş bir yer tutan astronomi ve astrolojinin ilimler sınıflandırılmasındaki yerlerine Fârâbî ve İbn Sînâ'nın ilimler sınıflandırması çerçevesinde değinilmiştir. İkinci bölümde ise klasik İslam düşüncesinde astronominin ortaya çıkışı, bu gelenekteki gelişmeleri ve önemli gördüğümüz İslam astronomlarından Bîrûnî, (...) İbn Heysem ve Nasîruddîn Tûsî'nin astronomiye katkılarına değinilmiştir. Üçüncü bölümde İslam düşüncesinde astronomi gibi önemi bir yeri olan astrolojinin de ne olduğu, bu düşünce geleneği içerisindeki yeri ve astronomi-astroloji ilişkisini gözeten, astroloji alanında düşünce üreten Kindî, Bîrûnî, Fârâbî ve İhvân-ı Safâ topluluğunun astrolojiye olan bakış açıları üzerinde durulmuştur. Çalışmamızın son bölümünde ise astrolojinin astronomi ve kozmolojiyle olan ilişkisine değinilmiş, modern bilimle birlikte astrolojinin neden bilim dışında kaldığına değinilmiştir. (shrink)