
Brigham Young
It has also been decreed by the Almighty that spirits, upon taking bodies, shall forget all they had known previously, or they could not have a day of trial—could not have an opportunity for proving themselves in darkness and temptation, in unbelief and wickedness, to prove themselves worthy of eternal existence. The greatest gift that God can bestow upon the children of men is the gift of eternal life; that is, to give mankind power to preserve their identity—to preserve themselves before the Lord… Cleave to light and intelligence with all your hearts, my brethren, that you may be prepared to preserve your identity, which is the greatest gift of God.
Journal of Discourses 333
Latter-day Saints' Book Depot, Liverpool, England, 1859, speech