D&C 1:31
“The idea that one is better off after one has sinned and repented is a devilish lie of the adversary. Does anyone here think that it is better to learn first-hand that a certain blow will break a bone, or a certain mixture of chemicals will explode and sear off our skin? Are we better off after we have sustained and then been healed from such injuries? I believe we all can see that it is better to heed the warnings of wise persons who know the effects on our bodies … [as well as our spirits].” (Dallin H. Oaks, BYU Fireside, 8-5-90)