This document discusses the concept of conscience and its three main functions. It defines conscience as a faculty that allows humans to perceive moral truths and feel either approval or remorse depending on if an action is right or wrong. Conscience has three functions - it makes us feel we ought to do right and not do wrong, it provides self-approval when we do right, and inflicts remorse when we do wrong. Examples are given for each function to illustrate how conscience determines and influences our moral actions.