I would argue that the thesis statement to "Civil Disobedience" can be found in a paragraph near the middle of the essay:
If the injustice is part of the necessary friction of the machine of government, let it go, let it go: perchance it will wear smooth—certainly the machine will wear out. If the injustice has a spring, or a pulley, or a rope, or a crank, exclusively for itself, then perhaps you may consider whether the remedy will not be worse than the evil; but if it is of such a nature that it requires you to be the agent of injustice to another, then, I say, break the law. Let your life be a counter-friction to stop the machine. What I have to do is to see, at any rate, that I do not lend myself to the wrong which I condemn.
In "Civil Disobedience," Thoreau considers whether people in a democratic society are bound to obey the will of the majority (the source, at least in theory, of laws). He argues that the fact that a law has been passed does not mean that it is morally...
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