Civil Disobedience (also known as On the Duty of Civil Disobedience and Resistance to Civil Government) is an essay published in 1849 by American writer and philosopher Henry David Thoreau. In this essay, Thoreau puts forward the argument each of us has an obligation to resist obedience to a government that acts unjustly lest we become agents of those same injustices. Using slavery and the Mexican-American war in his examples, Thoreau combines philosophical argument with sharing his own personal experiences to encourage all to act according to their consciences in living their day-to-day life, especially when it comes to complying with government edicts.