'after you' is good manners.

“您先请”是礼貌。

a good beginning makes a good ending.

善始者善终。

a friend is never known till a man has need.

需要之时方知友。

a friend without faults will never be found.

没有十全十美的朋友。

a good book is the best of friends, the same today and forever.

一本好书，相伴一生。

a good beginning is half done.

良好的开端是成功的一半。

a good conscience is a soft pillow.

不做亏心事，不怕鬼叫门。

a good book is a good friend.

好书如挚友。

a good fame is better than a good face.

美名胜过美貌。

a good husband makes a good wife.

夫善则妻贤。

a good medicine tastes bitter.

良药苦口。

a good wife health is a man's best wealth.

妻贤身体好是男人最大的财富。

actions speak louder than words.

事实胜于雄辩。

adversity leads to prosperity.

穷则思变。

adversity makes a man wise, not rich.

逆境出人才。

a fair death honors the whole life.

死得其所，流芳百世。

a faithful friend is hard to find.

知音难觅。

a fall into a pit, a gain in your wit.

吃一堑，长一智。

a fox may grow gray, but never good.

江山易改，本性难移。

a friend in need is a friend indeed.

患难见真情。

a friend is easier lost than found.

得朋友难，失朋友易。

a great talker is a great liar.

说大话者多谎言。

a hedge between keeps friendship green.

君子之交淡如水。

a joke never gains an enemy but loses a friend.

戏谑不能化敌为友，只能使人失去朋友。

all things are difficult before they are easy.

凡事总是由难而易。

all work and no play makes jack a dull boy.

只会用功不玩耍，聪明孩子也变傻。

a man becomes learned by asking questions.

不耻下问才能有学问。