“One of the principal purposes of mortality is for man to have the opportunity to learn the difference between right and wrong and between good and evil. This knowledge is necessary to gain the spiritual maturity to make righteous choices. … We came to mortal life to encounter resistance. It is part of the plan for our eternal progress. Without temptation, sickness, pain, and sorrow, there could be no goodness, virtue, appreciation for well-being, or joy. The law of opposition makes freedom of choice possible” (Teachings of Howard W. Hunter, 77–78).