The only true measure of success is the ratio between what we might have done and what we might have been on the one hand and the thing we have made and the things we have made of ourselves on the other.
There is a part of me that still wants to go out and grab a backpack and unplug - not take a cellphone or even a camera and just get out there and experience the world and travel. I have yet to do that but someday I hope.