In 1988, his own son entered high school and he realized that the boy had entered his pivotal teen years. The father-son relationship had to undergo some adjustments. He began to write a book in the form of letters to his son.
一九八八年，他自兒子上高中，意識到孩子已進入人生最重要的轉型期﹘﹘青春期，父子關係必須因應調整，開始以兒子為對象，用書信體的方式創作。