Mandino helped me put my finger on a problem with all these inspirational business-help books. It's the reason they feel good while you're reading them, but they don't wind up doing much good in your life. I had the realization when I got to his "law" on enthusiasm. Here's the problem: All of this advice assumes we have limitless energy. We don't have limitless energy. Enthusiasm is practically a synonym for energy, so in effect, Mandino is advising you to have energy, the very thing that is in short supply!
Boils down to this. Changing your life requires changing your habits. Changing your habits requires intentionality. Intentionality requires energy. So many times I want to be a better person. I identify some bad habits. To change them, I have to bear them in mind. I must stop to think before I act. Then I run into this problem. I'm out of juice. The day beats me down. The problems, the stresses, the conflicts. Can someone write a book on how to have more energy?
As for Greatest Salesman, it's fine. The advice is fine, and it does feel good while you're reading. I would just advise you to skip the silly story and go right to the practical stuff.
Notes:
apple
unless one has to pay or work hard for something, one never fully appreciates it
Save yourself some time and skip the story
Believing our own excuses
Never again will I pity or belittle myself
However we price ourselves, the world will agree
Never again will I greet the dawn without a map (have goals)
"Once I bargained with life for a penny, and life paid a penny"
Always will I bathe my days in the golden glow of enthusiasm
Enthusiasm is the love for whatever I'm doing at the moment
Never again will I be disagreeable to a living soul
Always will I seek the seed of triumph in every adversity
Never again will I perform any task at less than my best
Never again will I wait and hope for opportunity to embrace me