Highlight the principle of passive resistance as descried by Thoreau in Civil Disobedience

The refusal to obey a law or follow a policy believed to be unjust. Practitioners of civil disobediance basing their actions on moral right and usually employ the nonviolent technique of passive resistance in order to bring wider attention to the injustice. Risking punishment, such as violent retaliatory acts or imprisonment, they attempt to bring about changes in the law. In the modern era, civil disobedience has been used in such events as street demonstrations, marches, the occupying of buildings, and strikes and other forms of economic resistance.