All the way back in 1937, Napoleon Hill was writing about the human mind. In his book, Think and Grow Rich, he set out the idea that success truly starts internally. According to this book, we can think ourselves rich by having the right mindset and following certain guidelines in regard to how we think about success, money, and our lives going forward. Over the years, this concept has been revisited dozens of times. For a long time, the idea … [CLICK TO READ MORE]