To work with big trees, whose life spans are hundreds of years, I already have to project myself into a world in which I no longer exist. So I've developed a certain detachment from the results of my actions. If I can detach myself enough, I don't care that I'm doing something that won't come into it's own until forty or fifty years after I'm gone. It's really just a matter of scale. If I die in five years, I don't get to see what I would have in twenty.
Nature can provide evidence of a higher power.
It was a beautiful sunset, orange and purple. When I look at something like that, I know there's got to be something greater to create so much beauty out there. Man can't create that. So I have a lot of faith in a higher power. It's blind faith, but it beats no faith at all.