John Bingham said this quote

It was being a runner that mattered, not how fast or how far I could run. The joy was in the act of running and in the journey, not in the destination. We have a better chance of seeing where we are when we stop trying to get somewhere else. We can enjoy every moment of movement, as long as where we are is as good as where we'd like to be. That's not to say that you need to be satisfied forever with where you are today. But you need to honor what you've accomplished, rather than thinking of what's left to be done (p. 159).