You have to want it, you have to plan for it, you have to fit it into a busy day, you have to be mentally tough, you have to use others to help you. The hard part isn't getting your body in shape. The hard part is getting your mind in shape.
We are not responsible for every thought that goes wandering through our mind. We are, however, responsible for the ones we hold there. We're especially responsible for the one's we put there.