The part of ijtihad in establishing Islamic Humanities

The domain of Islamic teachings is so extended that includes all aspects of human life; and as is clear, a close relation is found between such fields of humanities as psychology, socially, law, politics, education in one hand and human`s material and immaterial, and social and personal aspects of life in the ther. Islam, therefore, is deeply related to humanities. Again, attaining a degree of knowledge in the fields of Arabic literature, the rules for understanding Quran and traditions, usul rules, the biography of tradition transmitters and philosophy is needed to perceive Islamic teaching. And it is the same thing called ijtihad. It can be, therefore, reasonable to know ijtihad as the unique way for establishing Islamic Humanities.