The pupil asked, “What is it that keeps you going?”
The wise sage laughed. “When I feel like stopping, I tell God: I’ll keep picking them up if you keep putting them down!”
The pupil asked, “What is it that keeps you going?”
The wise sage laughed. “When I feel like stopping, I tell God: I’ll keep picking them up if you keep putting them down!”
LEIGH HOPKINS 
I also love this Nhat Hanh gatha when I am running and wishing I could stop: “The Mind can go in a thousand directions, but on this beautiful path, I walk (run) in peace. With each step, a gentle wind blows. With each step, a flower blooms.”