Josh Philpot

The weakness of evil is that it cannot conquer weakness. No matter how much power evil has, it is always defeated by the free, loving renunciation of power. It can be defeated in Middle-earth as it was on Calvary. . . . Evil is limited in power; it cannot use weakness. It is limited to pride; it cannot use humility. It is limited to inflicting suffering and death; it cannot use suffering and death. It is limited to selfishness; it cannot use selflessness. But good can.

– Peter Kreeft (The Philosophy of Tolkien, 184-85)