Che Yin is diligent and knowledgeable. Poor people don't often get oil, but Xia Yue keeps dozens of fireflies in his exercise bag to take care of books day and night. Sun Kang, a native of Jingzhao, is sensitive and studious. My family is poor, and the lights are out of oil. I taste the snow and study in the winter months.

Che Yin, a native of Jin Dynasty, was studious and knowledgeable. He comes from a poor family and often has no sesame oil. (Light a lamp so that he can study under it) On summer nights, he put dozens of fireflies in a bag made of white silk and studied day and night. Sun Kang in Jin Dynasty, a native of Jingzhao, was smart and eager to learn, and his family was poor and had no oil, so he continued to study under the snow on winter nights.