I just have to

> If one can stick to the training for many long years, then will power is no longer a problem. It's raining? That doesn't matter. I am tired? That's beside the point. It's simply that I just have to.

> — Emil Zatopek

From:Sri Chinmoy,The Mount Everest Czech, Sri Chinmoy Marathon Team, 1980
Sourced from https://srichinmoylibrary.com/mec