Everyone in China has three doctoral qualifications, namely, Dr. Bo Tu with chopsticks, Dr. Botouzhi with coal, and Dr. Guazi. Among them, the most advanced and developed is eating melon seeds. Eating melon seeds is also the most time consuming. In his article, Mr. Feng Zikai wrote some old stories about eating melon seeds to satirize the leisure class and lamented that all China would probably disappear in the voice of "Geba" and "Dede". Seeing the big from the small can be described as worrying about the country and the people. This shows the terrible leisure.

Born in Shimen Bay, Chongde County, Zhejiang Province (now Shimen Bay, Tongxiang City, Jiaxing City, Zhejiang Province), Feng Zikai is a famous painter, writer, essayist, translator and art and music education theorist in modern China.