Henry David Thoreau (1817-1862) was a philosopher and writer best known for his attacks on American social institutions and his respect for nature and simple living. Thoreau's Civil Disobedience espouses the need to prioritize one's conscience over the dictates of laws. It criticizes American social institutions and policies, most prominently slavery and the Mexican-American War. Thoreau begins his essay by arguing that government rarely proves itself useful and that it derives its power from the …showed first 75 words of 933 total…

…showed last 75 words of 933 total…services we enjoy. Expediency does not take precedence over justice; people must do what justice requires regardless of cost--indeed, even if the cost is one's own life. Thus, Thoreau writes, "If I have unjustly wrested a plank from a drowning man, I must restore it to him though I drown myself." The people of the United States must stop slavery and the war with Mexico, even if it costs them their existence as a people.