只要功夫深，鐵杵磨成針 [－－－－－－铁－－－针]

Jyutping zi2 jiu3 gung1 fu1 sam1 ， tit3 cyu5 mo4 sing4 zam1
Pinyin zhǐ yào gōng fu shēn ， tiě chǔ mó chéng zhēn

Definitions (Wiktionary)
  1. proverb
    Diligence is the mother of success. / Practice makes perfect.

只要功夫深，鐵杵磨成針 [－－－－－－铁－－－针]

Jyutping zi2 jiu3 gung1 fu1 sam1 , tit3 cyu5 mo4 sing4 zam1
Pinyin zhǐ yào gōng fu shēn , tiě chǔ mó chéng zhēn

Definitions (CC-CEDICT)
  1. If you work at it hard enough, you can grind an iron bar into a needle.
  2. cf idiom 磨杵成針|磨杵成针, to grind an iron bar down to a fine needle (idiom); fig. to persevere in a difficult task
  3. to study diligently