Evil does not exist by nature, nor is any man naturally evil, for God made nothing that was not good. When in the desire of his heart someone conceives and gives form to what in reality has no existence, then what he desires begins to exist. We should therefore turn our attention away from the inclination to evil and concentrate it on the remembrance of God; for good, which exists by nature, is more powerful than our inclination to evil. The one has existence while the other has not, except when we give it existence through our actions.