The Great Napoleon Hill wrote the classic best seller, the best known, the most acclaimed success book of all time. I am not over-stating that, it is absolutely true. This book has been responsible for creating more millionaires than all of the other success books combined.
Hill contends that what you think about comes to pass. He said: “Anything the mind of man can conceive and believe, it can achieve.” This was not new but it truly was stated in a way that more people could accept than, for example, what Wallace Wattles said about visualizing and having things come to pass. So Hills book dwarfed all of the other success books.
You should incorporate these kinds of ideas in whatever it is that you do. Hill even presents a method to embed these ideas within so that you will use them automatically to ensure your success. He does this in chapters 3 and 4 of his book. You can find the audio of these chapters here: Think And Grow Rich.