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Napoleon Hill's 1937 classic, "Think and Grow Rich" is still relevant today.
Prompted by legendary businessman Andrew Carnegie, who turned a few nickels and dimes into a fortune, journalist Napoleon Hill researched more than 500 self-made millionaires over 20 years before releasing his 1937 best-seller "Think and Grow Rich."
"It was Mr. Carnegie's idea that the magic formula, which gave him a stupendous fortune, ought to be placed within reach of people who do not have time to investigate how men make money," Hill wrote in the preface.
The 13-step "magic formula" - which involves no mention of "money" or "wealth," but focuses instead on breaking down the psychological barriers that hold us back from attaining our own fortunes - is just as relevant today, 78 years later.
Here are Hill's 13 steps, in his words and ours: