Google Search

People don't have to take my word about the "civil disobedience" concept by Thoreau....  If they enter "Thoreau civil disobedience" into the Google search, they can find many entries....  Wikipedia has a good write-up, YouTube has some short but effective videos, and the Smithsonian Magazine has an article, besides others....  I believe one of the videos said all the high school students in the USA are normally taught about Thoreau....  Anyway, there's plenty of information available!