君子一言，駟馬難追 [－－－－－驷马难－]

Jyutping gwan1 zi2 jat1 jin4 ， si3 maa5 naan4 zeoi1
Pinyin jūn zǐ yī yán ， sì mǎ nán zhuī

Definitions (Wiktionary)
  1. proverb
    a gentleman must keep his promises

君子一言，駟馬難追 [－－－－－驷马难－]

Jyutping gwan1 zi2 jat1 jin4 , si3 maa5 naan4 zeoi1
Pinyin jūn zǐ yī yán , sì mǎ nán zhuī

Definitions (CC-CEDICT)
  1. a nobleman's word is his bond (proverb)