A root word has no prefix or suffix and is the most basic part of a word. The prefix of the word 'unreasonable' is 'un'. The root word is 'reasonable.'
Thoreau begins Civil Disobedience by saying that he agrees with the motto, "That government<span> is best which governs least." Indeed, he says, men will someday be able to have a </span>government<span> that </span>does<span> not govern at all. As it is, the </span>government<span> rarely proves useful or efficient.</span>
The purpose of King’s letter is to cause negotiation to fight crisis.