A mind ill with negative attitudes is more dangerous than a sick body, for its sickness is always contagious.
Napoleon HillIt is a point that I repeat over and over again in teaching public speaking. It is not so much what you say as it is the tone and manner in which you say it that makes a lasting impression.
Napoleon HillFailure is a trickster with a keen sense of irony and cunning. It takes great delight in tripping one when success is almost within reach.
Napoleon HillOne of the most common causes of failure is the habit of quitting when one is overtaken by temporary defeat.
Napoleon Hill