People who get addicted to drugs claim their rights of individual freedom against the government. In case they achieve their right of freedom, somehow it still seems not 100% ‘free’. Excluding any other interferences, drug addicts face difficulties in enjoying their rights. In other words, they are free to start taking drugs, but rarely have the right to quit. Self-discipline is required in every parts of our life. It is not under the law, but the way to keep our freedom.