Napoleon Hill Quotes
Maintain perfect harmony between yourself and every member of your mastermind group. If you fail to carry out this instruction to the letter, you may expect to meet with failure. The master mind principle cannot obtain where perfect harmony does not prevail.
Citations
Hill, Napoleon. Think and Grow Rich. The Ralston Society, 1937.
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Oliver Napoleon Hill was an American self-help author. He is known best for his book Think and Grow Rich (1937) which is among the 10 best selling self-help books of all time. Hill's works insisted that fervid expectations are essential to improving one's life. Most of his books were promoted as expounding principles to achieve "success".