It is as true as that night follows day, that the man who does more than he is paid for, and does it in a pleasant mental attitude, sooner or later is paid for more than he does.
Napoleon HillSuccessful people, in all callings, never stop acquiring specialized knowledge related to their major purpose, business, or profession.
Napoleon HillThere is some one thing that you can do better than anyone else in the world could do it. Search until you find out what this particular line of endeavor is, then organize all of your forces and attack it with the belief that you are going to win.
Napoleon Hill