If you want to talk art, look at the beautiful cathedrals, chapels, mosques, LDS temples, etc. If you want to see the profound impact, look at the lives of people that have been blessed. When you see a mother and father working out their differences, rather than taking the easy way our and divorcing, because they know that making it through the rocky times will make their love stronger - why do they do it? Many do this not for the kids alone but due to the lessons learned in their holy books. When you see people helping others because of the faith they have in their god(s), where did they faith come from? How did they know what to do? Many people, when asked, will quote their holy book(s) - even if it is just something that they heard someone else read or quote to them. Holy books are written by men. The cover page of the Book of Mormon reads, "And now, if there are faults they are the mistakes of men; wherefore, condemn not the things of God, that ye may be found spotless at the judgment-seat of Christ." I believe that we should read all holy book with this understanding, they all have been handed down orally, written and re-written, translated an re-translated. None of them are perfect. But we can still use them to help make ourselves perfect. It is only when we use them to condemn the imperfections of others that we miss use them and they harm the world.