There are two quotes that I absolutely love and represent how I view life and running. The first is pretty popular. Google it and it comes up everywhere, most often on quotes pages or as someone's signature. Yet nobody knows who said it and I have been unable to dig up the authors name. Grab the bull by the horns, I say, and live life. This is a great quote:
"Life's journey is not to arrive at the grave safely in a well preserved body but rather to skid in sideways totally worn out shouting "Holy shit, what a ride!"
This second quote is perhaps the same in different words. Live life doing, not thinking and not acting. I try to live by this one, but I could perhaps do more upon my feet. Something to work towards I guess.
"It's better to die upon your feet than to live upon your knees!" by Emiliano Zapata quoting Cuban hero of Independence Jose Marti.