Wallace D. Wattles's 'The Wisdom of Wallace D. Wattles Trilogy' is a seminal work that combines three of his most influential books: 'The Science of Getting Rich,' 'The Science of Being Well,' and 'The Science of Being Great.' Written in the early 20th century, this trilogy presents Wattles's practical and philosophical approach to achieving success, health, and greatness through the power of posi...