"If we did the things we are capable of, we would literally astound ourselves" Thomas A Edison

"A lot of people believe so much in what they can’t do and after starting something and becoming okay at it, move on to something else because they eventually become frustrated at not improving as much as they would have liked. Let me assure you now that you will have plateaus when nothing you do seems to help your improvement. Stick at it because the rewards will come… "

Walter Thorburn on Running