1.A friend in need is a friend indeed.
患难见真情。

2.live not to eat,but eat to live.
活着不是为了吃饭，吃饭为了活着。

3.Action speaks louder than words.
行动胜过语言。

4.East or west,home is the best.
金窝银窝不如自家草窝。

5.Its not the gay coat that makes the gentleman.
君子在德不在衣。

6.Beauty will buy no beef
漂亮不能当饭吃。

7.Like and like make good friends.
趣味相投。

8.The older,the wiser.
姜是老的辣。

9.Do as Romans do in Rome.
入乡随俗。

10.An idle youth,a needy age.
少壮不努力，老大徒伤悲。

11.As the tree,so the fruit.
种瓜得瓜，种豆得豆。

12.To live is to learn,to learnistobetterlive.
活着为了学习，学习为了更好的活着。

13.To open a book is always beneficial. / Reading enriches the mind.
开卷有益。

14.Knowledge is power.
知识就是力量。

15.A little learning is a dangerous thing.
一知半解，危害不浅。

16.Empty vessels make the most sound.
一瓶不响，半瓶哐当。

17.It’s never too late to learn.
活到老学到老。

18.Never too old to learn; never too late to turn.
学习不厌老，改过不嫌迟。

19.Agood beginning is half done. / Well begun is half done.
好的开始是成功的一半。

20.Opportunity knocks only once.
机不可失，失不再来。