Obedienceisthefirstdutyofasoldier军人以服从命令为天职。Observationisthebestteacher.观察是最好的老师。Offenseisthebestdefense.进攻是最好的防御。Oldfriendsandoldwinesarebest.陈酒味醇，老友情深。Oldsinmakesnewshame.一失足成千古恨。Onceamanandtwiceachild.一次老，两次小。Onceathief,alwaysathief.偷盗一次，做贼一世。Oncebitten,twiceshy.一朝被蛇咬，十年怕井绳。Oneboyisaboy,twoboyshalfaboy,threeboysnoboy.一个和尚挑水喝，两个和尚抬水喝，三个和尚没水喝。Onecannotputbacktheclock.时钟不能倒转。Oneeyewitnessisbetterthantenhearsays.百闻不如一见。Onefalsemovemaylosethegame.一着不慎，满盘皆输。Onegoodturndeservesanother.行善积德。Onehourtodayisworthtwotomorrow.争分夺秒效率高。Oneman‘sfaultisotherman‘slesson.前车之鉴。Oneneverlosesanythingbypoliteness.讲礼貌不吃亏。Oneswallowdoesnotmakeasumm一燕不成夏。One‘swordsreflectone‘sthinking.言为心声。Outofdebt,outofdanger.无债一身轻。Outofoffice,outofdanger.无官一身轻。Outofsight,outofmind.眼不见，心为静。Patienceisthebestremedy.忍耐是良药。Pennywise,poundfoolish.贪小便宜吃大亏。Plaindealingispraisedmorethanpracticed.正大光明者，说到的多，做到的少。Pleasetheeyeandplaguetheheart.贪图一时快活，必然留下隐祸。Pleasurecomesthroughtoil.苦尽甘来。Pourwaterintoasieve.竹篮子打水一场空。Practicemakesperfect.熟能生巧。Praiseisnotpudding.恭维话不能当饭吃。Praisemakesgoodmenbetter,andbadmenworse.好人越夸越好，坏人越夸越糟。Preferlosstounjustgain.宁可吃亏，不贪便宜。Preventionisbetterthancure.预防胜于治疗。Pridegoesbefore,andshamecomesafter.骄傲使人落后。Promiseisdebt.一诺千金。Proverbsarethedaughtersofdailyexperience.谚语是日常经验的结晶。Pullthechestnutoutoffire.火中取栗。Putthecartbeforethehorse.本末倒置。Putyourshouldertothewheel.鼎力相助。Readingenrichesthemind.开卷有益。Readingistothemindwhileexercisetothebody.读书健脑，运动强身。Respectyourself,ornooneelsewillrespectyou.要人尊敬，必须自重。Romeisnotbuiltinaday冰冻三尺，非一日之寒。Sayingisonethinganddoinganother.言行不一。Seeingisbelieving.眼见为实。Seekthetruthfromfacts.实事求是。Sendawisemanonanerrand,andsaynothingtohim.智者当差，不用交代。Setathieftocatchathief.以贼捉贼。Shortaccountsmakelongfriends.好朋友勤算账。Somethingisbetterthannothing.聊胜于无。Soonlearn,soonforgotten.学得快，忘得快。Soonripe,soonrotten.熟得快，烂得快。Speechissilver,silenceisgold.能言是银，沉默是金。Stillwaterrundeep.静水常深。Striketheironwhileitishot.趁热打铁。Successbelongstothepersevering.坚持就是胜利。Takethingsastheycome.既来之，则安之。Talkingmendsnoholes.空谈无补。Talkofthedevilandhewillappear.说曹操，曹操就到。Talltreescatchmuchwind.树大招风。Teachothersbyyourexample.躬亲示范。Thebestheartsarealwaysthebravest.无私者无畏。Thebestmanstumbles.伟人也有犯错时。Thecatshutsitseyeswhenstealing.掩耳盗铃。ThedangerpastandGodforgotten.过河拆桥。Thedarkesthourisnearestthedawn.黎明前的黑暗。Thedarkestplaceisunderthecandlestick.烛台底下最暗。Thedevilknowsmanythingsbecauseheisold.老马识途。Thedevilsometimesspeaksthetruth魔鬼有时也会说真话。Thedieiscast.木已成舟。Theearlybirdcatchestheworm.早起的鸟儿有虫吃。Theendjustifiesthemeans.只要目的正当，可以不择手段。Theendmakesallequal.死亡面前，人人平等。Theeyeisbiggerthanthebelly.贪多嚼不烂。Thefarthestwayaboutisthenearestwayhome.抄近路反而绕远路。Thefinestdiamondmustbecut.玉不琢，不成器。Thefireisthetestofgold,adversityofstrongman.烈火验真金，艰难磨意志。Thefirststepistheonlydifficu...
