The mythological figure known for teaching others about sacrifice is typically Prometheus. In Greek mythology, he defies the gods by stealing fire and giving it to humanity, symbolizing the idea of selfless action for the greater good. His act of defiance comes with severe punishment, reflecting themes of suffering and the costs associated with profound acts of kindness. Prometheus is often viewed as a champion of humanity, symbolizing the importance of sacrifice for progress and the perpetual struggle between divine authority and individual agency.