For each discipline, multiple rewards. For each book, new knowledge. For each success, new ambition. For each challenge, new understanding. For each failure, new determination.
Life is like that.
Even the bad experiences of life provide their own special contribution. Everything affects everything else. Neglect discipline, and there will be a price to pay. All things of value can be taken for granted with the passing of time. That s what we call the Law of Familiarity.