What are the ancient poems that emphasize the practical function?

Reading in winter night shows that Lu You, an ancient man, has no knowledge and it takes time to grow old. What you get on paper is so shallow that you never know what you have to do.

Use books, hate less; It's hard to know what's going on without it. -Lu you

The book has its own golden house, and the book has its own Yan Ruyu.

This is a road to the mountain of books, and learning is endless.

Read thousands of books and take Wan Li Road.