1、Experience is the mother of wisdom. 实践出真知。

　　2、Easier said than done. 说起来容易做起来难。

　　3、Practice makes perfect. 熟能生巧。

　　4、A fall into the pit,a gain in your wit. 吃一堑，长一智。

　　5、One false step will make a great difference. 失之毫厘，谬之千里。