The notable figure remembered for his efforts in civil disobedience is Henry David Thoreau. His essay, "Civil Disobedience," argues for individuals to act according to their conscience, even against unjust laws. Thoreau's philosophy was influenced by his beliefs in justice and moral responsibility. His ideas inspired many civil rights leaders, including Martin Luther King Jr. and Mahatma Gandhi, in their nonviolent protests against oppression. Thoreau's work remains influential in discussions surrounding activism and ethical governance.