" According to Augustine, the power of sin is such that it takes hold of our will, and as long as we are under its sway we cannot move our will to be rid of it. The most we can accomplish is to struggle between willing and not willing, which does little more than show the powerlessness of our will against itself. The sinner can will nothing but sin. Within that condition, there certainly are good and bad choices; but even the best choices still fall within the category of sin. "

― Justo L. González , The Story of Christianity: Volume 1: The Early Church to the Reformation (Story of Christianity)