若要功夫深 鐵杵磨成針 To train for supreme skills and be fit as a fiddle

若要功夫深，
鐵杵磨成針。

To train for supreme skills and be fit as a fiddle,
You'll have to grind the iron rod into a sharp needle!


台上一分鐘，
台下十年功。

Just one minute's performance on the stage (in the spotlight)
Demands ten years off-the-stage hard training (with no oversight).