James Allen 
As a Man Thinketh [EPUB ebook] 

Contains Active Table of Contents (HTML) and ​in the end of book include a bonus link to the free audiobook.
As a Man Thinketh : Classic Wisdom for Proper Thought, Strong Character, & Right Actions.
Just as a gardener cultivates his plot, keeping it free from weeds, and growing the flowers and fruits which he requires, so may a man tend the garden of his mind, weeding out all the wrong, useless, and impure thoughts, and cultivating toward perfection, the flowers and fruits of right, useful, and pure thoughts. By pursuing this process, a man sooner or later discovers that he is the master-gardener of his soul, the director of his life. He also reveals, within himself, the laws
of thought, and understands, with ever-increasing accuracy, how the thought-forces and mindelements operate in the shaping of his
character, circumstances, and destiny