欲善其事，必先利其器 [－－－－－－－－－－]

Jyutping juk6 sin6 kei4 si6 , bit1 sin1 lei6 kei4 hei3
Pinyin yù shàn qí shì , bì xiān lì qí qì

Definitions (CC-CEDICT)
  1. To do a good job, an artisan needs the best tools (idiom). Good tools are prerequisite to the successful execution of a job