People also derive codes of ethics from several other sources, among them being personal values, personal gain, and what things harm other people. There are many philosophical schools of ethics. Some meta-ethicists deny the objectivity of right and wrong, but more rational schools of thought generally prevail. | People also derive codes of ethics from several other sources, among them being personal values, personal gain, and what things harm other people. There are many philosophical schools of ethics. Some meta-ethicists deny the objectivity of right and wrong, but more rational schools of thought generally prevail. |