Without doubt, the most common weakness of all human beings is the habit of leaving their minds open to the negative influence of other people.
Napoleon HillSuccess in life depends upon happiness, and happiness is found in no other way than through SERVICE that is rendered in a spirit of love.
Napoleon HillThe super-salesman neither permits his subconscious mind to "broadcast" negative thoughts nor give expression to them through words, for the reason that he understands that "like attracts like" and negative suggestions attract negative action and negative decisions from prospective buyers.
Napoleon Hill