Eight-character idioms warning others to keep their promises.

When a word is spoken, it is difficult to recall (when a word is spoken, it is difficult to recall) Y and Y á n.

[Interpretation] In a word, even four horse-drawn cars are hard to catch up with. When you say something, you can't take it back. You must keep your promise.

[Language] "The Analects of Confucius Yan Yuan": "The words of the master are also gentlemen." "Deng Xi's Biography": "A word is inconsistent, and the horse cannot be chased; In a hurry, the horse can't reach. "

Be a gentleman, how can you repent! ◎ Li Yuan Shouqing's Third Fold of "Five Yuan Chuixiao"

What has been said cannot be taken back; When a word is spoken, it is hard to catch up with it; A word spoken is past recalling.