Dwarfs were not a naturally religious species, but in a world where pit props could crack without warning and pockets of fire damp could suddenly explode they'd seen the need for gods as the sort of supernatural equivalent of a hard hat. Besides, when you hit your thumb with an eight-pound hammer it's nice to be able to blaspheme. It takes a very special and strong-minded kind of atheist to jump up and down with their hand clasped under their other armpit and shout, "Oh, random-fluctuations-in-the-space-time-continuum!" or "Aaargh, primitive-and-outmoded-concept on a crutch!
Terry PratchettMost species do their own evolving, making it up as they go along, which is the way Nature intended. And this is all very natural and organic and in tune with mysterious cycles of the cosmos, which believes that there's nothing like millions of years of really frustrating trial and error to give a species moral fiber and, in some cases, backbone.
Terry PratchettYou can't make people happy by law. If you said to a bunch of average people two hundred years ago "Would you be happy in a world where medical care is widely available, houses are clean, the world's music and sights and foods can be brought into your home at small cost, traveling even 100 miles is easy, childbirth is generally not fatal to mother or child, you don't have to die of dental abscesses and you don't have to do what the squire tells you" they'd think you were talking about the New Jerusalem and say "yes."
Terry Pratchett