Joseph F. Smith

“Obedience to the Gospel will save the world from sin, abolish war, strife and litigation, and usher in the millennial reign. It will restore the earth to its rightful owner, and prepare it for the inheritance of the just. These are all principles of [the] Gospel of Christ, and the effects which will flow from their acceptance and adoption by mankind” (Teachings of Presidents of the Church: Joseph F. Smith, p.394).