ethic
The word "ethics" comes from the Greek ἠθικός, and means that which belongs to ἦθος, which meant "good habit," "higher custom," or "bearer of character." It differs from morality because, while it is based on obedience to customs and habits received, ethics, on the contrary, seeks to ground moral actions exclusively by reason. In classical philosophy, ethics did not boil down to morality, but it sought the theoretical foundation to find the best way to live and live, that is, the search for the best lifestyle in both private and public life. Ethics included most fields of knowledge that were not covered in physics, metaphysics, aesthetics, logic, dialectics, or rhetoric. Thus, ethics covered the fields that are currently called anthropology, psychology, sociology, economics, pedagogy, sometimes political, and even physical and dietary education, in short, fields directly or indirectly linked to what influences the way of living or style of life. An example of this classic view of ethics can be found in Spinoza's Ethics.