The Epistemological Bases of Morality in the Kalāmī Thought of Sheikh Ṭ ūsī

Morality has been formed on numerous theoretical bases that their role is essential in writing the moral commandments. The epistemological bases are amongst the most important bases in the realm of ethics that explain the moral concepts and propositions and justify them and necessitate the exploration of the sources and the ways of knowledge and evaluating them. With a descriptive-analytic method, this research tries to clarify, by exploring the Kalāmi thoughts of Sheikh Ṭūsī, the epistemological bases of morality and explain their impression in ethical knowledge. Reason, revelation and intuition are among the pillar of Sheikh Ṭūsī’s epistemological bases and reason is the most important epistemic source in morality; because the validity of other epistemic sources of morality is taken of reason.