Possessing discipline requires having an inner desire, drive and motivation that catapults you toward your goal. However, this is not just about achieving a goal. Discipline is more specifically about your ability to control your desires and impulses in an attempt to stay focused (long enough) on what needs to be done to successfully achieve that goal.

With this definition, we can say that discipline, in a nutshell, involves committing to long-term gains without falling into the traps of instant gratification along the way. When people lose focus, which is the hardest thing to maintain, discipline is lost. Good post.