CANNOT BELIEVE BOTH GOSPEL AND EVOLUTION. I say most emphatically, you cannot believe in this theory of the origin of man, and at the same time accept the plan of salvation as set forth by the Lord our God. You must choose the one and reject the other, for they are in direct conflict and there is a gulf separating them which is so great that it cannot be bridged, no matter how much one may try to do so.
Joseph Fielding Smith (1972). “Doctrines of Salvation: Sermons and Writings”