With undivided attention.一心一意
Two heads are better than one.人多智广
Everyone has his own ambition.人各有志
Be perfect in every way.十全十美
Have sth. in the bag.十拿九稳
Kill two birds with one stone.一箭双雕
Be Greek to sb.一窍不通
Human nature.人之常情
The unexpected always happens.天有不测风云
A good nail doesn't fear the hammer.千锤百炼
One's spirit is willing,but the flesh is weak.心有余而力不足
Do in Rome as the Romans do.入乡随俗
It only happens once in a blue moon.千载难逢的机会
Still water runs deep.大智若愚
By hook or by crook(想方设法；不择手段).不择手段
Come across.不期而遇
Here and there and everywhere.比比皆是
Of one's own accord.心甘情愿
To one's heart's content.心满意足
Prepare for a rainy day.未雨绸缪
Knowledge is infinite.学无止境
Not worth mentioning.微不足道
After rain comes sunshine.苦尽甘来
A bird in the hand is worth two in the bush.一鸟在手胜过双鸟在林
A plant may produce new flowers;man is young but once.人活一世，草木一春
A man is known by the company he keeps./Birds of a feather flock together.物以类聚，人以群分/观其友，知其人
Don' t kill the goo that lays golden eggs.切莫杀鸡取卵，竭泽而渔
Don't count your chickens before they are hatched.鸡未孵出别数鸡，钱未到手别算利
Everyone to his taste./One man's meat is another man's poison.萝卜青菜，各有所爱
Fish begins to stink at the head. 上梁不正下梁歪
Reading is to the mind what exerci is to the body.读书有益于心正如运动有益于身
Constant dripping wears the stone.滴水穿石
Learn to walk before you run.学跑之前先学走
Never put off till tomorrow what can be done today.今日事，今日毕
Never do things by halves.不要半途而废
It is never too old to learn./Live and learn.活到老学到老
Reading enriches the mind.开卷有益
No pains no gains.若非一番彻骨寒，怎得梅花扑鼻香
Old friends and old wine are best.陈酒味醇，老友情深
Through thick and thin有福同享，有难同当
Art is long but life is short.人生苦短，学海无涯
Better master one than engage with ten.与其通十样，不如精一样
A fall into a pit,a gain in your wit.吃一堑，长一智
A good begun is half done.好的开始是成功的一半
Diligence is the mother of good fortune.勤奋乃成功之母
Great minds think alike.英雄所见略同
Beauty is but skin-deep.貌美止于浅表
Never judge by appearances./Judge not a book by its cover./Clothes don't make the man.
人不可貌相
Handsome is as handsome does.行为美才是真的美
He that has no children knows not what is love.养儿方知父母恩
Marriage is destiny.姻由天定
Love me little,love me long.细水长流爱最甜
The way to a man's heart is through his stomach.要抓住男人的心，先要抓住他的胃
The world is but a little place after all.天涯原咫尺，此地又逢君
A friend in need is a friend indeed.疾风知劲草，患难见真情
A faithful friend is hard to find.知音难觅
Misfortune tests the sincerity of friends.不幸是检验朋友真情的试金石
A life without a friend is a life without a sun.人生无友犹如空中无日
A mother's love never changes.母爱永恒
East or west,home is the best.金窝银窝，不如自家的草窝
Quality matters more than quantity.质量比数量更重要
A contented mind is a perpetual feast.知足常乐
A light heart lives long.豁达者长寿
A healthy mind is in a healthy body.心健寓于身健
Sound in body,sound in mind.身健才能心悦
There are two sides to every question.每个问题都有两面
The proof of pudding is in the eating.亲自下河知深浅，亲尝布丁知酸甜
When you play,play hard;when you work,don't play at all.尽兴地玩，专心地工作
You never know what you can do till you try.不试就不知道你能做什么
As a man lives,so shall he die.有生必有死
A light pur makes a heavy heart.无钱处处难
Ask your pur what you should buy.量入为出
Good health is above wealth.健康胜于财富
Misfortune tells us what fortune is.不经灾祸不知福
Let not the sun go down on your wrath.今日气今日消
Life is short and time is swift,人生苦短，光阴似箭
Old habbits die hard.积习难改
Older and wir.姜还是老的辣
Once bit,twice shy.一着被蛇咬，十年怕井绳
The eye is bigger than belly（腹部）./Bite off more than one can chew.贪多嚼不烂
A journey of a thousand miles begins with a single step.千里之行，始于足下
A chain is no stronger than its weakest link.链子的强度如何，取决于最薄弱的一环
Wisdom is a treasure for all time.智慧是永恒的财富
Wisdom is better than gold and silver.金钱有价，智慧无价
More haste,less speed.欲速则不达
Behind the mountains there are people to be found.山外有山，人外有人
Better early than late.宁早勿晚
Better late than never.迟做总比不做强
One cannot put back the clock./Time past cannot be recalled.时光不能倒流
A mill cannot grind with the water that is past.逝水不推磨，时去不再回
An hour in the morning is worth two in the evening.一日之计在于晨
A watched pot never boils.心急水不沸
An lazy youth,a lousy age.少壮不努力，老大徒伤悲
Tomorrow never comes.明日无尽头
Easier said than done.说起来容易做起来难
First come,first rved.先来后到
From small beginning comes great things.伟大始于渺小
Genius is 1% inspiration and 99% perspiration(汗水).天才是百分之一的灵感加百分之九十九的汗水
