How can we cultivate the power of positive thinking? The question has dogged us since Orison Swett Marden-the preeminent self-help expert of the early 20th century and a forerunner of Dale Carnegie and Norman Vincent Peale, Stephen R. Covey and Anthony Robbins-first revealed the impact our state of mind has over own success. In this book, first published in 1906, Marden explains: . How our thoughts radiate as influence . How mind rules the body . Why our worst enemy is fear . How to master our moods . Why affirmation creates power . And much more. American writer and editor ORISON SWETT MARDEN (1850-1924) was born in New England and studied at Boston University and Andover Theological Seminary. In 1897, he founded Success Magazine.