The law outlines the rules that a society should live by, and this word also refers to the legal system. Law quotes can help you understand that each country has rules which are designed to govern the actions of the population, and the regulations in place can vary widely. Under Islamic law men may have four wives, but a wife can only have one husband because this set of legal boundaries is male dominated. The word law may also refer to a set of principles or guidelines that must be followed in an industry, like the safety laws in the USA which are designed to protect workers while they are on the job. If you break a law then you will usually have to appear before a judge, and you could be arrested and incarcerated for some infractions.