Morality is the differentiation of intentions, decisions, and actions between those that are "good" and those that are "bad" . The philosophy of morality is ethics. A moral code is a system of morality and a moral is any one practice or teaching within a moral code. Morality may also be specifically synonymous with "goodness" or "rightness." Immorality is the active opposition to morality , while amorality is variously defined as an unawareness of, indifference toward, or disbelief in any set of moral standards or principles. An example of a moral code is the Golden Rule which states that, "One should treat others as one would like others to treat oneself."