Napoleon Hill's Master Key

Definiteness of Purpose is the starting point of all achievement.

The Master Mind Principle consists of an alliance of two or more minds working in perfect harmony for the attainment of a common definite objective.

Render more and better service than that for which you are paid, and sooner or later you will receive compound interest from your investment.

Faith is a state of mind, which may develop by conditioning the mind to receive Infinite Intelligence; applied faith is the adaptation of the power received from Infinite Intelligence to a major definite purpose.

Having a pleasing personality is the aggregate of all the agreeable, gratifying and likable qualities of any one individual.

Self-discipline, or self-control, means taking possession of the mind.