It is a poor mouse that has only one hole.
狡兔三窟。
If the cap fits， wear it.
帽子若适合你，就戴上吧。
If you want peace， prepare for war.
欲求和平必先备战。
It is great to be great， but it is greater to be human.
成为伟人是美好的，做一个真正的人更难得。
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。
Idle young， needy old.
少时闲混，到老穷困。
It，s not the gay coat that makes the gentleman.
君子在德不在衣。
It is the first step that is troublesome.
万事起头难。
It is too late to shut the stable door after the horse has been stolen.
失马锁慨，为时已晚。
It never rains but it pours.
不下则已，一下倾盆。
It takes two to make a quarrel.
一个巴掌拍不响。
It is better to trust the eye than the ear.
百闻不如一见。
It is never too late to learn.
学不厌晚。
It is lawful to learn even from an enemy.
即使向敌人学习也是合法的。
It is not the gay coat that makes the gentleman.
君子不在衣装。
In prosperityprosperity n.繁荣 caution， in adversity patience.
顺境中，小心；逆境中，耐心。
It is always safe to learn even from our enemies.
即使向敌人学习也不会有危险。
It is better for the doer to undo what he has done.
解铃还需系铃人。
It is easy to be wise after the event.
事后聪明并不难。
In for a penny， in for a pound.
一不做，二不休。
In the deepest water is the best fishing.
水深好钓鱼。
In the end， things will mend.
车到山前必有路。
It is a foolish sheep that makes the wolf his confessorconfessor n.自白者， 为信教而被迫害的教徒 .
蠢羊才向狼忏悔。
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。
It is better to fight for justice than to rail at the ill.
与其责骂罪恶，不如伸张正义。
Intelligence without ambitionambition n.野心， 雄心 is a bird without wings.
有智慧而无志向，正如鸟儿没有翅膀。
It is but a step from the sublime to the ridiculousridiculous adj.荒谬的， 可笑的 .
从崇高到荒谬只有一步之遥。
More than enough is too much.
超过所需就是太多。
Misfortunes never come alone/single.
祸不单行。
Misfortunes tell us what fortune is.
不经灾祸不知福。
Money is a good servant but a bad master.
金钱可以成为很好的仆人，却绝对是最坏的主人。
Many hands make light work.
人多好办事。
No wisdom like silence.
智者寡言。
Necessity knows no law.
铤而走险。
Nothing great was ever achieved without enthusiasm.
无热情成就不了伟业。
Never is a long word.
不要轻易说“决不”。
No man was ever wise by chance.
任何人的聪明才智绝非得之偶然。
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。
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 man is his craft，scraft n.工艺， 手艺 master the first day.
师傅领进门，修行在个人。
No way is impossible to courage.
勇者无惧。
No weal without woe.
福兮祸所伏， 祸兮福所倚。
Obedience is the first duty of a soldier.
军人以服从命令为天职。
Observationobservation n.观察， 观测， 观察资料（或报告） is the best teacher.
观察是最好的老师。
One，s sin will find one out.
坏事终归要败露。
Offense is the best defense.
进攻是最好的防御。
One today is worth two tomorrows.
一个今天胜似两个明天。
Old sin makes new shame.
一失足成千古恨。
Once a man and twice a child.
一次老，两次小。
Once a thief， always a thief.
偷盗一次，做贼一世。
Once bitten， twice shy.
一朝被蛇咬，十年怕井绳。
One boy is a boy， two boys half a boy， three boys no boy.
一个和尚挑水喝，两个和尚抬水喝，三个和尚没水喝。
One cannot put back the clock.
时钟不能倒转。
Silence is the most perfect expression of scornscorn n.轻蔑， 嘲笑， 被叱责的人 vt.轻蔑， 不屑做 .
沉默是藐视最完美的表达方式。
Speech is silver； silence is gold.
能言是银，沉默是金。
Still water run deep.
静水常深。
Strike the iron while it is hot.
趁热打铁。
Seeing is believing.
眼见为实。
Spare when you re young， and spend when you re old.
少时俭省老来花。
Sunday clears away the rust of the whole week.
星期天能去掉一个星期的锈迹。
There is no smoke without fire.
无风不起浪。
Things done can not be undone.
木已成舟。
Take a pain for a pleasure all wise man can.
智者能视苦为乐。
Take time by the forelockforelock n.额发， 额毛
vt.以栓， 楔固定， 销往 .
要抓住时机。
Take time while time is， for time will be away.
机不可失，时不再来。
Tall trees catch much wind.
树大招风。
Tastes differ.
众口难调。/人各有所好。
Teaching others teaches yourself.
教学相长。
Tears are the silent language of grief.
眼泪是悲哀的无声言辞。
Telling your troubles is swellingswelling n.河水猛涨，涨水 your troubles.
诉说烦恼等于增加烦恼。
Temperancetemperance n.节欲， 戒酒， 禁酒， （气候等的）温和 is the best physicphysic n.医学， 医术， 泻药
vt.给……服药， 治愈 .
克制乃是最好的治疗。
Temperance is the greatest of virtue.
自我节制是最大的美德。
Take one，s courage in both hands.
勇往直前，敢作敢为。
Take the rough with the smooth.
即能享乐，也能吃苦。
To know oneself is wisdom， to forget oneself is follyfolly n.愚蠢， 荒唐事， 轻松歌舞剧， 讽刺剧， 傻念头， 傻话， 耗费巨大而又无益的事， (古)放荡 .
自知之明是智慧，忘乎所以是愚蠢。
The fly that sips treacletreacle n.糖蜜， 甜蜜， 过分甜蜜的声调 is lost in the sweet.
啜饮蜜糖的苍蝇在甜蜜中丧生。
There，s many a good tune played on an old fiddle.
旧琴也能奏出好乐章。
The principalprincipal n.负责人， 首长， 校长， 主犯， 本金
adj.主要的， 首要的 thing in this world is to keep one s soul aloft.
人生在世首要大事是保持灵魂的高尚。