I won't say humans don't create amazing things too.

[Like, in a different universe, Shadowmaru himself would count as one of those things!]

But nature is just incredible. It's... It's just that to me, everything we build all seems so [he gropes around for a moment, trying to find the right word.] fleeting compared to what nature can do. A city is nice, but it feels like nothing compared to standing on top of an ancient volcano, knowing that it took aeons for everything there to form, and it will be there for aeons more, even if we aren't. And that is just here on this earth, which isn't even a fraction of what is out there in the universe.

[Sorry, he's just passionate about the amazingness of the natural world.]