Here's the brutal truth about motivation: it's a feeling, not a system. Feelings fluctuate. Some mornings you wake up fired up; most mornings you don't. If your productivity depends on motivation, you will always be at its mercy. Discipline is different. Discipline is a skill — a neural pathway built through repetition that makes the right action automatic, regardless of how you feel. And unlike motivation, it compounds over time. "Motivation gets you started. Discipline keeps you going." — Jim…