Really nice book in which Napoleon Hill interviews the Devil and asks him why the Devil acts in certain ways. The stories the Devil tells then reinforces principles from other books by Napoleon Hill about positivity and the law of attraction. Contrasts the dangers of negative emotions such as envy, jealousy, dishonesty and the pitfalls that addiction can cause.
book review
The Science of Happiness by David J. Lieberman
Defining Happiness Happiness is defined as meaningful progress toward a desired objective. It is largely influenced by your perspective and how you choose to view