Elder Bruce R. McConkie (1915–85) of the Quorum of the Twelve Apostles
“Four great principles must be in force if there is to be agency: 1. Laws must exist … which can be obeyed or disobeyed; 2. Opposites must exist—good and evil, virtue and vice, right and wrong—that is, there must be an opposition, one force pulling one way and another pulling the other; 3. A knowledge of good and evil must be had by those who are to enjoy the agency, that is, they must know the differences between the opposites; and 4. An unfettered power of choice must prevail” (Bruce R. McConkie, Mormon Doctrine, 2nd ed. [1966], 26).
