书不尽言

Explanation: Books: letters. The letter is difficult to fully express its meaning. Make more letters after the end of learning language. 　　Usage: The main predicate; as predicate, the clause; make more letters at the end of term 　　Source: "Book of the copulative": "Master said: 'Books are not the words, words not the meaning.'" 　　Examples: ~, To be dead to life. (Ming Luo Guanzhong's "Romance of Three Kingdoms," chapter 26) 　　Riddle: Let's hear next decomposition