94. Everyone does this battling who believes in the existence of hell and of heaven: that heaven is eternal happiness, and hell eternal unhappiness; and that those who do evils go to hell, and those who do goods to heaven. And one who thus fights acts from within, and against the concupiscence itself which constitutes the root of the evil, for one who fights against anything does not will it, and to desire is to will. This shows that the root of evil is not removed except by means of combat.
