---

Otherness is one of the methods of accessing hidden interests beyond the literary texts which through literary discourse analysis can be in direct relation to political science and sociology. Critical discourse analysis believes that each text is shaped by political and ideological approaches and the relationship between political issues and texts is not an accidental one. Laclauand Mouffe believe that in every discourse one can use two concepts of logic of equality and logic of difference to explain the relations of otherness present in literary texts. That is, in every discourse, a positive pole is foregrounded as“we”or ours, and on the opposite pole the negative side is introduced as“they”or “others”. Foregrounding and backgrounding are used in texts and discourse through language functions. Investigatingthis method in some of Khayyam's Quatrains we will find out why Khayyam has pursued a kind of polarization in his quatrains and also will realize how Khayyam, along with his philosophical views expressed in his Quatrains, has tried to suggest political and critical motives through his discourse.