踏破铁鞋无觅处，得来全不费工夫。Your persistent search may prove futile, but a stroke of luck may lead you to a sudden discovery.
Literal translation:
踏破——worn out
铁鞋——iron shoes
无——no
觅处——search for the right place
得来——get it
全——totally
不——no
费——to spend
工夫——efforts
SPEAK MANDARIN 