心急水不開 (或心急水不沸)

英譯：
a watched pot never boils

例句：
Don't just sit there waiting for your girlfriend to call. A watched pot never boils. (別只是坐在那裡等著你女朋友打電話來。心急水不開啊!)

本文亦刊載在下列網址：
http://htmfiles.englishhome.org/idioms/idioms_chinese-1.htm