รายละเอียด(อย่างย่อ) This book reveals how to have a successful life or a tough life by outlining the ways in which people choose to do good or bad deeds in their life. All humans are different because we all have differing behavioral patterns. It is these patterns which influence our decision-making and thus our thoughts. If you want to know the secret of how to live a happy life, simply open this book and read the contents.