American author (1883-1970)
Napoleon Hill (26 October 1883 – 8 November 1970) was an American self-help author. He is best known 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".
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When the opportunity came, it appeared in a different form, and from a different direction than Barnes had expected. That is one of the tricks of opportunity. It has a sly habit of slipping in by the back door, and often it comes disguised in the form of misfortune, or temporary defeat. Perhaps this is why so many fail to recognize opportunity.
You have absolute control over but one thing, and that is your thoughts. This is the most significant and inspiring of all facts known to man! It reflects man's Divine nature. This Divine prerogative is the sole means by which you may control your own destiny. If you fail to control your own mind, you may be sure you will control nothing else. p. 173