The Nature of How to create Ethos based onthe viewpoint of Ibn Sina, Mulla Sadra and Physicalism

Ethos are considered as qualities of the soul innate qualities. Since man's behavior and actions are due to of his ethos, and human’s ethics have a great influence on his felicity and perfection, so it is important to discuss about the appearance of ethos. In this article, firstly, explains what of ethos and its varieties and then have been explained the emergence of ethos's quality according to the viewpoint of Avicenna and Mulla Sadra. According to Avicenna's view, some kinds of ethics are immaterial and some material, but from the point of Mulla Sadra's view, all kinds of ethics are divested of body and material. According to the viewpoint of both scholar, physical affairs such as temperament, body nature, and repetition of action have an effect on the emergence of ethos. However, the different principles that these two philosophers have concerning the materiality and abstractedness of animal faculties and hence the varieties of disposition, has caused their disagreement on the quality of the appearance of disposition.. In the perspective of physicalism, ethos has been reduced to brain functions, and there is no immaterial explanation for the ethos.