Short Senpai's Key Ideas from Think and Grow Rich
by Napoleon Hill

Persistence is an essential factor in the procedure of transmuting Desire into its monetary equivalent. The basis of persistance is the Power of will

Will-power and desire when properly combined,make an irresistible pair. Men who acquire great fortunes are generally known as cold-blooded, and sometimes ruthless. Often they are misunderstood. What they have is will power, which they mix with persistance , and place back of their desires to insure attainment of their objective.