Fumitake Koga, an award-winning professional writer and author, was born in 1973. He has released numerous bestselling works of business-related and general non-fiction. He encountered Adlerian psychology in his late twenties, and was deeply affected by its conventional wisdom-defying ideas. Thereafter, Koga made numerous visits to Ichiro Kishimi in Kyoto, gleaned from him the essence of Adlerian psychology, and took down the notes for the classical “dialogue format” method of Greek philosophy that is used in this book.