What poem means to combine what you have learned with real life, so that you can learn knowledge solidly.

The poem describing "combining what you have learned with the reality of life to make your knowledge solid" is: what you get on paper is shallow, and you will never know.

Read to my son on winter nights.

Dynasty: Song Dynasty

Author: Lu You

The ancients learned nothing, and it takes time to grow old.

What you get on paper is so shallow that you never know what you have to do.

translate

The ancients spared no effort in their studies, and often achieved nothing when they were old. After all, the knowledge gained from books is not perfect. If you want to understand the truth deeply, you must practice it yourself.