What does it mean to study this poem diligently? Introduce this poem diligently.

1, which means: knowledge needs hard work, just like those predecessors who took the lamp, they studied hard at night and read a lot of books. Study hard for a few years, "literature and history are enough in three winters", and you will be learned. At that time, who would laugh at your lack of ink and knowledge? Diligence means studying hard.

Author: Wang Zhu in the late Northern Song Dynasty.

2. The full text is as follows:

Study hard, thousands of books.

Three winters are enough for today, and whoever laughs is empty.