There is no courage or persistence in a life without goals.

　　沒(méi)有目標(biāo)的生活就沒(méi)有勇氣和堅(jiān)持。

　　Between input and output, you must find courage and persistence.

　　在投入和產(chǎn)出之間，你必須找到勇氣和堅(jiān)持。

　　Her persistence paid off and she eventually wore me down.

　　她鍥而不舍取得成功，終于使我服輸了。