This is the doctrine of Christian Science: that divine Love cannot be deprived of its manifestation, or object; that joy cannot be turned into sorrow, for sorrow is not the master of joy; that good can never produce evil; that matter can never produce mind nor life result in death. The perfect man - governed by God, his perfect Principle - is sinless and eternal.
Mary Baker EddyIf God causes man to be sick, sickness must be good, and its opposite, health, must be evil, for all that He makes is good and will stand forever. If the transgression of God's law produces sickness, it is right to be sick; and we cannot if we would, and should not if we could, annul the decrees of wisdom. It is the transgression of a belief of mortal mind, not of a law of matter nor of divine Mind, which causes the belief of sickness. The remedy is Truth, not matter,--the truth that disease is unreal.
Mary Baker Eddy