“A man is literally what he thinks, his character being the complete sum of all his thoughts,” is one of the quotes from James Allen's classic self help books, As a Man Thinketh. Published in 1902, it provides many more such insightful concepts on the power of thought and its effect on a human being's personality and behavior. This volume is more of a literary essay than a complete book and its title is based on a Biblical proverb, “As a man thinketh in his heart, so is he.” Taking this piece of ancient wisdom further, James Allen explores the far-reaching effects...