A word from a gentleman is a whip from a horse(jūn zǐ yī yán，kuài mǎ yī biān)

A word from a gentleman is a whip from a horse

A gentleman's word, a fast horse's whip is a word. Pinyin is j ū NZ ǐ y ì y á n, Ku à im ǎ y ì Bi ā n, which means doing things and being a man is a decision and never going back.

explain

It's a metaphor for doing things, being a man, and never going back.

source

In Song Dynasty, Shi Daoyuan's "Jingde Zhuandeng Lu" Volume 6: "one whip for a fast horse, one word for a fast man. Why don't you come out and take care of everything. " example a gentleman's word, a whip of a horse, people have no faith, I do not know what to do. The 53rd chapter of Jin Ping Mei CI Hua

Chinese PinYin : jūn zǐ yī yán，kuài mǎ yī biān