For me, the fall of the Wall came at the exact right time because, I mean, I was 17, basically I hadn't missed anything, unlike the generation of my parents, who were deprived of a lot of things. They couldn't travel, and they couldn't really get ahead in their professional careers. So for me, it was perfect timing.
Nature is impersonal, awe-inspiring, elegant, eternal. It's geometrically perfect. It's tiny and gigantic. You can travel far to be in a beautiful natural setting, or you can observe it in your backyard - or, in my case, in the trees lining New York City sidewalks, or in the clouds above skyscrapers.