When I was small, as I ran up the stairs to get something, I would yell down, "Be right, be back!" as if to put everyone and everything in the room on pause until I returned. My mom said I used to hate taking naps because I was afraid I would miss something. More than twenty years later, I still feel the same way. These days I'm still trying to do everything, but hopefully little by little acheiving a measure of balance. I love this quote. We are capable of anything, but we can't be everything.
Ivan- take this to heart, please, and rest.