I'm always trying to do stuff I haven't done before or challenge myself so I'm not resting on my laurels all of the time because if I just found my little niche and never left it, I'd be pretty boring, I think.
Each organism, no matter how simple or complex, has around it a sacred bubble of space, a bit of mobile territoriality which only a few other organisms are allowed to penetrate and then only for short periods of time.
You know, I love wearing heels. I wish I could wear them all the time, but, you know, my sport doesn't really permit it.