Ethics (via Latinethica from the Ancient Greekἠθική [φιλοσοφία] "moral philosophy", from the adjective of ἤθοςēthos "custom, habit"), a major branch of philosophy, is the study of values and customs of a person or group. It covers the analysis and employment of concepts such as right and wrong, good and evil, and responsibility. It is divided into three primary areas: meta-ethics (the study of the concept of ethics), normative ethics (the study of how to determine ethical values), and applied ethics (the study of the use of ethical values).
Freedom, or the idea of being free, is a broad concept that has been given numerous interpretations by philosophies and schools of thought. The protection of interpersonal freedom can be the object of a social and political investigation, while the metaphysical foundation of inner freedom is a philosophical and psychological question.