In this chapter, Levine approaches sacrifice as a practical and praxiological demonstration of commitment, which is what many civil pioneers treated as the basis for a ‘green life.’ Sacrifice has been mobilised across the political spectrum in South Korean history, which this chapter explores, but ‘one working as one hundred (ildangbaek)’ is a particular idiom of sacrifice that captures the superhuman aspiration to act despite the physical, financial, organisational, and expertise limits civil movement organisations regularly confronted.