I cannot be your friend and your flatterer too.朋友不能阿谀奉承。
If a man deceives me once, shame on him, if he deceives me twice, shame on me.
上当一回头，再多就可耻。
If you make yourself an ass, don‘t complain if people ride you.
人善被人欺，马善被人骑。
If your ears glow, someone is talking of you.耳朵发烧，有人念叨。
If you run after two hares, you will catch neither.脚踏两条船，必定落空。
If you sell the cow, you sell her milk too.杀鸡取卵。
If you venture nothing, you will have nothing.不入虎穴，焉得虎子。
If you want knowledge, you must toil for it.要想求知，就得吃苦。
Industry is the parent of success.勤奋是成功之母。
It is better to die when life is a disgrace.宁为玉碎，不为瓦全。
It is easier to get money than to keep it.挣钱容易攒钱难。
It is easy to be wise after the event.事后诸葛亮好当。
It is easy to open a shop but hard to keep it always open.创业容易守业难。
It is hard to please all.众口难调It is never too old to learn.活到老，学到老。
It is no use crying over spilt milk.覆水难收。
It is the first step that costs troublesome.万事开头难。
It is the unforeseen that always happens.天有不测风云，人有旦夕祸福。
It is too late to grieve when the chance is past.坐失良机，后悔已迟。
It never rains but it pours.不鸣则已，一鸣惊人。
It takes three generations to make a gentleman.十年树木，百年树人。
Jack of all trades and master of none.门门精通，样样稀松。
Judge not from appearances.人不可貌相，海不可斗量。
Justice has long arms.天网恢恢，疏而不漏。
Keep good men company and you shall be of the number.近朱者赤近墨黑。 
Kill two birds with one stone.一箭双雕。 
Kings go mad, and the people suffer for it君王发狂，百姓遭殃。
Kings have long arms.普天之下，莫非王土。
Knowledge is power.知识就是力量。
Knowledge makes humble, ignorance makes proud.
博学使人谦逊，无知使人骄傲。 Learn and live.活着，为了学习。
Learning makes a good man better and ill man worse.
好人越学越好，坏人越学越坏。
Learn not and know not.不学无术。Let sleeping dogs lie.别惹麻烦
Learn to walk before you run.先学走，再学跑。
Let bygones be bygones.过去的就让它过去吧。
Let the cat out of the bag.泄漏天机。Life is but a span.人生苦短。 
Lies can never changes fact.谎言终究是谎言。 
Lies have short legs.谎言站不长。 
 Life is half spent before we know what it is.人过半生，方知天命。
Life is not all roses.人生并不是康庄大道。 
Life without a friend is death.没有朋友，虽生犹死。 
Like a rat in a hole.瓮中之鳖。 
Like author, like book.文如其人。 
Like father, like son.有其父必有其子。 
Like for like.一报还一报。 Like knows like.惺惺相惜。
Like mother, like daughter.有其母必有其女。
Like teacher, like pupil.什么样的老师教什么样的学生。
Like tree, like fruit.羊毛出在羊身上。
Little things amuse little minds.小人无大志。
Look before you leap.摸清情况再行动。
Lookers－on see more than players.当局者迷，旁观者清。
Losers are always in the wrong.胜者为王，败者为寇。
Lost time is never found again.岁月既往，一去不回。
Love at first sight.一见钟情。 Love cannot be compelled.爱情不能强求。
Love is blind.爱情是盲目的。 Love is full of trouble.爱情充满烦恼。
Love is never without jealousy.没有妒忌就没有爱情。
Love me, love my dog.爱屋及乌Make hay while the sun shines.良机勿失。
Make your enemy your friend.化敌为友。 
Man is the soul of the universe.人是万物之灵。
Man proposes, God disposes.谋事在人，成事在天。
Many hands make light work.众人拾柴火焰高。
Many heads are better than one.三个臭皮匠，赛过诸葛亮。
Many things grow in the garden that were never sown there.
有心栽花花不发，无心插柳柳成荫。
Measure for measure.针锋相对。
Misfortunes never come alone.祸不单行。
Misfortune tests the sincerity of friends.患难见真情。
Money isn‘t everything.钱不是万能的。 Murder will out. 纸包不住火。
My son is my son till he has got him a wife, but my daughter is my daughter all the days of her life.
儿子婚前是儿子，女儿终生是女儿。
Nature is the true law.天行有常，不为尧存，不为桀亡。
Necessity is the mother of invention.需要是发明的动力。
Never fish in trouble water.不要混水摸鱼。
Never judge from appearances.不可以貌取人。 Never say die.永不言败。
Never too old to learn, never too late to turn.亡羊补牢，为时未晚。 
New wine in old bottles.旧瓶装新酒。
No cross, no crown.不经历风雨，怎么见彩虹。
No garden without its weeds.没有不长草的园子。
No living man all things can.世上没有万事通。
No man can do two things at once.一心不可二用。 
No man is born wise or learned.没有生而知之者。 No man is content.人心不足蛇吞象
No man is wise at all times.聪明一世，糊涂一时。
None are so blind as those who won‘t see.视而不见。
None are so deaf as those who won‘t hear.充耳不闻
No news is good news.没有消息就是好消息。
No one can call back yesterday.昨日不会重现。
No pains, no gains.没有付出就没有收获。 
No pleasure without pain.没有苦就没有乐。
No rose without a thorn.没有不带刺的玫瑰。
No sweet without sweat.先苦后甜。 No smoke without fire.无风不起浪。
Nothing brave, nothing have.不入虎穴，焉得虎子。
Nothing dries sooner than a tear.眼泪干得最快。
Nothing in the world is difficult for one who sets his mind to it.
世上无难事，只怕有心人。
Nothing is difficult to the man who will try.世上无难事，只要肯登攀。
Nothing seek, nothing find.没有追求就没有收获。
Nothing is so necessary for travelers as languages.外出旅行语言最要紧。
Nothing is to be got without pains but poverty.
世上唯有贫穷可以不劳而获。
Not to advance is to go back.不进则退。
Not to know what happened before one was born is always to be a child.
不懂世故，幼稚可笑。
No way is impossible to courage.勇者无惧。