Joseph Smith described perfection as a "fullness of light and knowledge," not a state of punctilious obedience, piety, or holiness. We would do well to decriminalize doubt in the church in order to make space for noble doubts that beget inquiry, rationality, and healthy skepticism. The right kind of doubting lends itself well to further acquisition of light and knowledge. We have no need to fear the sort of doubt that foments faith. As J. Reuben Clark once explained, "investigation can’t harm truth. If we have the truth, comparisons will do no harm to us. Only those who do not have the truth can have their beliefs shaken by investigation.”