Keep your breath to cool your porridge. 少管闲事.
Keep your eyes wide open before marriage, and half shut afterwards. 婚前张开眼，婚后半闭月.
Keep your mouth shut and your ears open. 多听少讲。
Keep your mouth shut and your eyes open. 要多看少说.
Keeping is harder than winning. 创业不易，守业更难.
Kill the goose that laid the golden egg. 杀鸡取蛋
Kill two birds with one stone. 一箭双雕。
Kind hearts are more than coronets. 善良的心灵胜于显贵的地位.
Kind hearts are the gardens; kind thoughts are the roots; kind words are the flowers; kind deeds are the fruits. 善良的心是花园，善良的思想是根径，善良的话语是花朵，善良的行动就是果子。
Kind words are the music of the world. 善言是世上的音乐.
Kind words are worth much and cost little. 口头方便不费力.
Kind words butter no parsnips. 画饼充饥.
Kindness always begets kindness. 善有善根.
Kindness is the golden chain by which society is bound together. 善良是连结社会的金链.
Kindness is the language that the deaf can hear and the dumb understand. 善良为语言，聋子能天见哑巴懂心间.
Kindness is the sunshine of social life. 仁慈是社会生活中的阳光.
Kindness will creep where it may not go. 仁慈可进入任何禁地.
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。
Kinsman helps kinsman, but woe to him that hath nothing. 亲帮亲，邻帮邻，无亲无助你倒霉.
Knavery may serve, but honestyis best. 欺诈可能得计，但诚实总是上策.
Knock, and the door shall be opened. 只要敲门，就会有人来开。
Know something like the palm of one's hand. 熟知其事，了如指掌.
Know something of everything and everything of something. 既要有一般常识，又要有专业知识.
Know thyself. 知道你自己.
Knowledge advances by steps not by leaps. 知识的获得是循序渐进而不是突飞猛进的.
Knowledge comes from diligence. 知识源于勤奋。
Knowledge comes from experience alone. 知识来自经验.
Knowledge is a treasure, but practice is the key to it. 知识是一座宝库，实践是打开宝库的钥匙.
Knowledge is of two kinds, we know a subject ourselves, or we know where we can find information upon it. 知识有两种，一种是我们自己知道的东西，另一种是知道哪里可以找到有关的资料.
Knowledge is power. 知识就是力量.
Knowledge is the antidote to fear. 知识可以解除恐惧.
Knowledge is the most precious treasure of all things, because it can never be given away, nor stolen nor consumed. 知识是万物中最珍贵的财宝，丢不掉，偷不走，也不会损耗.
Knowledge makes humble, ignorance makes proud. 博学使人谦逊，无知使人骄傲。
Knowledge makes humble; ignorance makes proud. 知识令人谦虚；无知使人骄傲.
Knowledge makes one laugh, but wealth makes one dance. 知识使人笑逐言开，财富使人手舞足蹈。
Knowledge will not be aquired without pain and application. 不花力气，不下功夫是得不到知识的.
Knowledge without practice makes but half an artist. 只有知识而无实践，只能造就半瓢水的艺术家.
Labour is light where love doth pay. 爱情作酬报，劳苦必轻松.
Labour is often the father of pleasure. 勤劳常为快乐之源.
Labour is the capital of our working men. 劳动力是劳动人民的资本.
Late repentance is seldom true. 后悔少有诚意.
Laugh and grow fat. 心宽体胖.
Laugh at your ills, And save doctors' bills. 生病不忧虑，节省医药费.
Laugh before breakfast you'll cry before supper. 乐极生悲.
Laugh, and the world laughs with you; weep, and you weep alone. 你笑，人人陪你笑；你哭，惟独你自哭.
Law makers should not be law breakers. 正人先正己.
Laws catch flies but let hornets go free. 法网只捉苍蝇，不捉黄蜂.
Lawsuits consume time, and money, and rest, and friends. 诉讼将消耗时间、金钱、休息和失去朋友.
Lazy folks take the most pains. 懒汉多吃苦.
Learn and live. 活着，为了学习。
Learn not and know not. 不学无术。
Learn to creep before you leap. 循序渐进.
Learn to say before you sing. 按部就班.
Learn to suffer without complaining; that is the best thing I can teach you. 要学会受痛苦而不怨，这是我教你的至要之事.
Learn to walk before you run. 循序渐进.
"Learn to walk before you run.
" 人要学走，先得学爬。
Learn wisdom by the follies of others. 要从别人的愚行中学到聪明.
Learn young, learn fair. 学习趁年轻，既学就学好.
Learning is an ornament in prosperity, a refuge in adversity, and a provision in old age. 学问在得意时是装饰品，失意时是庇护所，年老时是供应品.
Learning is the eye of the mind. 知识是心灵的慧眼。
Learning is wealth to the poor, an honour to the rich, an aid to the young, and a support and comfort to the aged. 学问是穷人的财富，是富人的荣誉，是青年的帮助，是老年的支持和安慰.
Learning makes a good man better and ill man worse. 知识能使好人更好，坏人更坏.
Learning without thought is labor lost. 学而不思，白费力气。
Learning without thought is labour lost; thought without learning is perilous. 学而不思则罔，思而不学则殆.
Least said, soonest mended. 多说反坏事.
Lend your money and lose your friend. 赔了夫人又折兵.
Let beggars match with beggars. 龙配龙，凤配凤.
Let bygones be bygones. 既往不昝.
Let difficulties occur but not the loss of courage. 纵使困难重重，也不丧失勇气.
Let every man praise the bridge he goes over. 饮水思源.
Let every man speak well of the bridge theat carries him over. 饮水思源.
Let every tub stand on its own bottom. 各人管各人自己.
Let not the cobbler go beyond his last. 安分守己.
Let not the sun go down upon thy wrath. 日落之前，平息你的怒火吧.
Let our object be our courtry, our whole country, and nothing but our country. 我们的心目中要有国家，要有整个国家，而且只有我们的国家别如其他.
Let sleeping dogs lie. 不要惹事生非.
Let the cat out of the bag. 泄漏天机。
Let the cobbler stick to his last. 安分守己.
Let the dead bury the dead. 往事不重提.
Let the hands get busy, not the mouth. 手要勤劳，嘴莫多说.
Let things take their course. 听其自然.
Let your yea be yea and your nay be nay. 是就是，非就非.
Let's cross the bridge when we come to it. 既来之，则安之.
Liars have need of good memories. 谎言者要有好的记忆力.
Liars should have good memories. 说谎的人应有好的记性.
Liberty consists in the power of doing that which is permitted by law. 自由就是做法律许可做的事情的权力.
Liberty is not licence. 自由不是放纵.
Liberty often degenerates into lawlessness. 自由随便，经常堕落到无法无天.
Lie in (oron) the bed one has made. 自作自受.
Lies can never changes fact. 谎言终究是谎言。
Lies have short legs. 谎言是站不住脚的.
Life if made up of little things. 生活是由琐事构成的.
Life is a battle from cradle to grave. 人生是一场从生到死的战斗.
Life is a comedy to him who thinks and a tragedy to him who feels. 对善思考者，人生为喜剧；对凭感觉者，人生为悲剧.
Life is a flower of which love is the honey. 人生是花朵，爱情是花蜜.
Life is a shuttle 生活犹如梭子.
Life is but a span. 人生如朝露.
Life is compared to a voyage. 人生好比一次航程。
Life is compared to voyage. 人生好比是航海.
Life is for one generation, a good name is forever. 生命只有一代之久，而美名永存于世。
Life is great if you don’t weaken. 有了坚强意志，生活才有意义。
Life is half spent before we know what it is. 等到认识人生，已经一半过去了.
Life is like the moon: now dark, now full. 生活如同月亮，时有阴晴圆缺。
Life is long if you know how to use it. 如果懂得好好利用，生命就长了.
Life is made up of little things. 生活是由许多琐事构成的。
Life is measured by thought and action, not by time. 生命的价值是用思想和行为来衡量的，而不是寿命的长短.
Life is not a bed of roses. 人生并非处处鸟语花香。
Life is not all beer and skittles. 人生并不全是吃喝玩乐.
Life is not all roses. 人生并不是康庄大道。
Life is not so short but there is time enougn for courtesy. 人生虽短，但表示礼貌的时间还是足够的.
Life is short and time is fleeting 人生短暂，光阴易逝.
Life is sweet. 生命是甜美的。
Life means struggle. 生活就是斗争。
Life without a friend is death without a witness. 在世无朋友，死后无证人.
Life without a friend is death. 没有朋友，虽生犹死。
Life, to be worthy of a rational being, must be always in progression. 人生必须永远前进，才不愧为有理智的人.
Light troubles speak; great troubles are silent. 小困难，大声叫嚷；大困难，闷生不响.
Lightly come, lightly go. 易得易失.
Like a rat in a hole. 瓮中之鳖。
Like attracts like. 物以类聚.
Like author, like book. 书如其人.
Like begets like. 有其父必有其子.
Like cow, like calf. 有其父必有其子.
Like cures like. 以毒攻毒.
Like draws to like the whole world over. 物以类聚，世间皆如此.
Like draws to like. 物以类聚.
Like father, like son. 有其父必有其子.
Like for like. 一报还一报。
Like knows like. 英雄识英雄.
Like mother, like daughter. 有其母必有其女.
Like teacher, like pupil. 有其师必有其徒.
Like tree, like fruit. 有其因必有其果.
Littel chips light great fires. 星星之火，可以燎原.
Little and little and bit by bit. 一点一滴，积沙成塔。
Little boats must keep the shores. 小船不能航行远.
Little bodies may have great souls. 小小的躯体会有伟大的心灵.
Little pigeons can carry great messages. 少年也可以成大事.
Little pitchers have a big ears. 小孩子耳朵尖。
Little pitchers have great (or large) ears. 小孩子耳朵长.
Little strokes fell great oaks. 水滴石穿.
"Little strokes fell great oaks.
" 滴水穿石。
Little thieves are hanged, but great one's escape. 窃钩者诛，窃国者侯.
Little things amuse little minds. 小人志卑.
Little things please little minds. 胸无大志，事事称心。
Little wealth, little care. 财少寡忧.
Live and learn. 活到老，学到老。
"Live and learn.
" 活到老，学到老。
Live and let live. 自己生活，也要让他人生活.
Live not to eat, but eat to live. 不要为了吃饭活着，而要为了活着吃饭。
Live to learn and learn to live. 生而学之，学而生之.
Living without an aim is like sailing without a compass. 生活没有目标，犹如航海没有罗盘.
Lock the stable door before the steed is stolen. 马未偷走前，厩门先锁上.
Loftiest trees most dread the thunder. 树大招风.
Long absent, soon forgotten. 长久不在的人，很快被忘怀.
Long tarrying takes all the thanks away. 事情耽搁太久就没有人会感谢了.
Look at the world through rose-coloured glasses. 对万事要乐观.
Look before you leap. 摸清情况再行动。
Look before you leap; see before you go. 三思而行.
Look for a needle in a bundle (or bottle) of hay. 海底捞月.