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Sadi is one of the few Persian poets whose fame and eternal presence in the Persian culture rests mostly on the effect of his works. This study is an effort to investigate the relationship between his didactic, rhetorical, religious and ethical poems and the principles of the Ash'ari school of rhetorical thought. To this end, we will define the discipline of rhetoric and mention its characteristic features as well as the reasons for its emergence and development, and also the probable weaknesses and failure of the Mo'tazele and Ashare. The two dominant schools of rhetoric in the Islamic civilization will be given special treatment. However, in the final section of the project, entitled "Sa'di's school of Rhetoric" the historical background and the reasons for Sa'dis tendency toward Ash'ari school will be explained.  Finally evidence for this tendency and reflections of his Ash'ari thought samples will be extracted from his poems and will be classified and explained under the common rhetorical topics such as "divine sight", "divine justice", and "determinism and free will

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A part of Khaghani's Divan includes his Arabic poems where one can be find a large number of errors which have not already been studied and discussed. In this paper, attempts are made to illustrate some of these errors and correct them. In so doing, the present researchers have studied these errors stemming from misreading (Tashif), distorting and miswriting, and considering Khaghani's other poems and Arab poets, the syntagmatic (metonymic) level of poems, Khaghani's poetical style, figures of speech, copies, meanings, etc,  we have suggested the correct forms. These errors are so frequent; hence, it is highly necessary to correct them. Due to Khaghani's great status, his artistic skills and his powerful rhetoric in Persian and Arabic languages, it is highly necessary to study these poems more closely and precisely again.

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The study of binary oppositions in art and literature has attracted some contemporary linguists, mythologists, narratologists and semiologists. They maintain that one may get a better understanding of the literary work through these binary oppositions. In this study attempt is made to have another look at the poems of Shams al-Din Muhammad Hafiz by considering binary opposition as one of the central elements and main features of his poems. For this purpose, 100poems have been selected randomly.In these poems 637 binary oppositions are seen indicating that in each sonnet there are 4 to 6 cases of binary opposition. The binary oppositions are grouped in three parts: verbal and lexical (35%), semantic and conceptual (54%), and literary (11%). Semantic pairs are repeated more often in the poems of Hafiz, which give his Ghazalstheir distinctive feature. 

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Literary works are the carriers of many regulations, values, norms, beliefs, structures and existential, cultural, and social aspects of their time. Many of the social and cultural realities of past centuries embedded within the extant literary works of those centuries can be identified and followed through. The critical approach in discourse analysis of literary texts provides a more precise knowledge of different cultural and social manifestations, life aspects, and people’s intellectual systems of the society of the authors of these works. The issue of economy is among social and cultural structures that has been less attended to in literary researches. The study of economic discourse in literary texts can also reveal other social, cultural, and intellectual discourses governing the temporal context of creating these works. This article deals with the critical analysis of economic discourse of the poems of Khaqani Shirvani. The goal is that following this approach to study the influence of this type of economic thought and the resulting culture on the linguistic, aesthetic, and intellectual structure manifested in Khaqani’s poetry and also to find out the reason why such a specific economic culture was dominant at that time. The result of this study indicates that the discourse of social hierarchy and luxury was dominant then and along with the power discourse resulting from wealth it had been naturalized and institutionalized in the economic culture of the time.

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Simin Behbahani is one of the contemporary ingenious and efficacious poets. In her New-Sonnets (Nou-Ghazal), the frequency and variety of allusions are too many, so that the allusion is one of the most striking features of her poetic style. Accurate understanding of semantic capacities and structural concinnities of the word, which has allusive theme, depends on being familiar with meaning and concept of allusions on one side, and knowing the structure of allusions and methods of applying them on the other. Because of the importance and necessity of studying the methods and techniques making depth, affection, and intellectual, cultural and semantic development of allusions in order to better identify and understand the capabilities, elegances and semantic and structural measures of New-Sonnets of Simin Behbahani and the role of these factors in the creation of literary enjoyment, the main goal of this paper is to analyze the structure of allusion and also sorts of using it on the vertical axis of imaginations in New-Sonnets of Simin Behbahani. The results show that allusions used in poems of Simin Behbahani, have varieties in construction from single and complex words to the spread and vast allusions on the entirety of the vertical axis of Sonnets. Overall, in new-Sonnets of Simin Behbahani, the allusions are represented on the vertical axis in different kinds and methods such as parallel allusions, integrative allusions, comparison allusions, Molammah, structural allusions, debate allusions or allusive debate, incarnative allusions, etc. some of these methods especially in the vertical axis, are rare or unprecedented.