慢工出細貨 [－－－细货]

Jyutping maan6 gung1 ceot1 sai3 fo3
Pinyin màn gōng chū xì huò

Definitions (CC-CEDICT)
  1. patient work makes a fine product
Definitions (粵典–words.hk)
  1. 語句
    做​嘢​做​得​慢​啲​，​就​自然​會細心​啲​，​成品​嘅​質​素​亦​都​會​高​啲
    quality comes with slow and meticulous work; soft fire makes sweet malt; slow and steady wins the race
Definitions (Wiktionary)
  1. proverb
    slow and meticulous work leads to fine quality; soft fire makes sweet malt; slow and steady wins the race