Extension is to persuade people to pursue infinite knowledge with limited life, which is bound to fail, so don't pursue absolute, enough is enough.
Wu: the first person Chen pronoun, I; Ya: fate, fate.
Poems expressing hard work and striving for strength are as follows:
There is a road in the mountain of books, but there is no limit to learning the sea.
I advise you not to cherish noble Yi, and I advise you to cherish youth.
When the flowers bloom, you must pick them straight. Don't wait for the flowers to run out before picking branches.
Don't be idle, it's white and sad.
Every day when the cock crows, it is the best time for boys to read.
Teenagers only know how to play, but don't know how to study hard. When they are old, they regret why they didn't know how to study hard when they were young.