The assumption that nature is all there is, and that nature has been governed by the same rules at all times and places, makes it possible for natural science to be confident that it can explain such things as how life began.
“Showing up every day isn't enough. There are a lot of guys who show up every day who shouldn't have showed up at all.”
“You don't have to call it God or Jesus. That's religious humbug to a lot of people, but you've gotta believe that nature and spiritual things surround us. That is what put us here! I thank the universe for that every day of my life.”