Meaning: The knowledge gained from books is superficial after all, and the true meaning of knowledge cannot be understood. To truly understand the profound truth in books, you must practice it yourself.
From: Reading to Children on Winter Nights
Year: Song Dynasty
Author: Lu You
Genre: Seven Musts
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.