Ethics codes embody both universal social norms like fairness and equality as well as specialized professional norms. They integrate values through standards of virtue, principles of responsibility, and rules of duty. Standards of virtue assess character and practice, principles of responsibility prescribe conduct while allowing judgment, and rules of duty prescribe conduct without discretion. Ethics codes bond practitioners to positive moral identities through idealized conduct standards. They embody "ideal types" that integrate values and images to define a profession's moral image and identity.