1.Bitter pills may have wholesome effects.良药苦口
2.Every man has his fault.人孰无过
3.First come,first served.捷足先登
4.In fair weather prepare for foul.未雨绸缪
5.Let bygones be bygone.既往不咎
6.Practice makes perfect.熟能生巧
7.Well begun is half done.事半功倍
8.When you are in Rome,do as the Romans do.入乡随俗
9.Haste makes waste.欲速则不达
10.Look before you leap.三思而后行
11.A friend in need is a friend indeed.患难见真情
12.Actions speak louder than words.事实胜于雄辩
13.A good fame is better than a good face. 美名胜过美貌
14.A fall into a pit, a gain in your wit.吃一堑,长一智
15.Do wrong once and you'll never hear the end of it.一失足成千古恨
16.A fox may grow gray, but never good.江山易改,本性难移
17.Where there is life, there is hope.留得青山在,不怕没柴烧
18.Man proposes,God disposes.谋事在人,成事在天
19.No gains without pains.吃得苦中苦,方为人上人
20.A good beginning is half done. 良好的开端是成功的一半