My workout this morning called for five miles. Run two, walk one, run the last two. I think in the Fall or Spring it would have been fairly easy, but today, in the July heat and humidity, every step felt like dragging a pair of anchors. My muscles gave out sooner, my breath ran out faster… it was a hard workout. I finished it though, because what I’ve learned is that even when it’s hard, even when you are having a tough time and not going as fast as you’d like, you always have to finish.