The energetic ones were zipping down the road, slicing through the air like they had robbers at their heels. Others, overweight, huffed and puffed, their eyes half closed, their shoulders slumped like this was the last thing in the world they wanted to be doing. They looked like maybe a week ago their doctors had told them they have diabetes and warned them they had to start exercising. I'm somewhere in the middle.
To keep on going, you have to keep up the rhythm. This is the important thing for long-term projects. Once you set the pace, the rest will follow. The problem is getting the flywheel to spin at a set speed-and to get to that point takes as much concentration and effort as you can manage.