The Role of Nasir al-Din al-Tusi in Avecina's philosophy and his philosophical innovations

The effort of Khaje Nasir al-Din -Tusi was to defend Avicenna against Asharite theologians Gazali and Fakhr Razi and other Anti-Aveciennen movements. He explained Avicenna,'s thought, however, he criticized some aspects of them and made a new paradigm for resolving problems, Many philosophers and theologians after him pursued him and profit by. His solutions were in a number of issues, such as the theory of Emanation (sudur) and knowledge of God. Tusi had solved the problem of how the multiplicity-the universe was generated from the One with the notion of aspects (Etebariat) and designed a model for creations that were based on logical progression and evolved Avicenna's theory. Al Tusi has some new ideas about the intellect realm and identified it with Actual Facts (Nafso-al-amr). In his view multicity in the intellect realm can solve the problem of knowledge in detail. Khaje Nasir with the aspect of shie wisdom emphasized the role of the teacher for achieving abstract knowledge and the necessity of guidance of Imam for it. He believed that somethings in religion are out of reaching intellect and for those things we need guidance and help like the corporal resurrection, he defined some ideas, like spheres and their numbers as an axiom from other sciences.