i've taken up running.

"Right now I'm aiming at increasing the distance I run, so speed is less of an issue. As long as I can run a certain distance, that's all I care about. Sometimes I run fast when I feel like it, but if I increase the pace I shorten the amount of time I run, the point being to let the exhilaration I feel at the end of each run carry over to the next day."

Haruki Murakami