君子一言，驷马难追

君子一言，驷马难追

Literally means:

gentleman's words can never be taken back even by a carriage on four horses

Actually means:

words once spoken will never be taken back; what is said cannot be retracted

君子, a cultured or noble gentleman; 驷马, four horses that are harnessed to the same carriage.

This phrase means that gentleman's words, once spoken, can never be retracted.

It figuratively means that one should be always responsible for his words and never break his words. It is used to remind people to establish good credit and be true to their words

君子，道德高尚的人。驷马，同拉一辆车的四匹马。

君子一言，驷马难追，道德高尚的人话讲出去以后，再快的马也拉不回来。比喻对自己说过的话负责到底，一定照着办，绝对不反悔。提醒人们要讲诚信，要说到做到。