We do not have to wait for future discoveries in connection with the powers of the human mind for evidence that the mind is the greatest force known to mankind. We know, now, that any idea, aim or purpose that is fixed in the mind and held there with a will to achieve or attain its physical or material equivalent, puts into motion powers that cannot be conquered.
Napoleon HillWhen life gives you lemons, make lemonade and sell it to all of those who get thirsty from complaining.
Napoleon HillFrom Christ on down to Edison, the men who have achieved most have been those who met with the most stubborn forms of temporary defeat. This would seem to justify the conclusion that Infinite Intelligence has a plan, or a law, by which it hurdles men over many obstacles before giving them the privilege of leadership or the opportunity to render useful service in a noteworthy fashion.
Napoleon Hill