Obedience is the first duty of a soldier軍人以服從命令為天職。
    Observation is the best teacher.觀察是的老師。
    Offense is the best defense.進(jìn)攻是的防御。
    Old friends and old wines are best.陳酒味醇，老友情深。
    Old sin makes new shame.一失足成千古恨。
    Once a man and twice a child.一次老，兩次小。
    Once a thief， always a thief.偷盜一次，做賊一世。
    Once bitten， twice shy.一朝被蛇咬，十年怕井繩。
    One boy is a boy， two boys half a boy， three boys no boy.一個(gè)和尚挑水喝，兩個(gè)和尚抬水喝，三個(gè)和尚沒水喝。
    One cannot put back the clock.時(shí)鐘不能倒轉(zhuǎn)。
    One eyewitness is better than ten hearsays.百聞不如一見。
    One false move may lose the game.一著不慎，滿盤皆輸。
    One good turn deserves another.行善積德。
    One hour today is worth two tomorrow.爭(zhēng)分奪秒效率高。
    One man‘s fault is other man's lesson.前車之鑒。
    One never loses anything by politeness.講禮貌不吃虧。
    One swallow does not make a summ一燕不成夏。
    One‘s words reflect one's thinking.言為心聲。
    Out of debt， out of danger.無債一身輕。
    Out of office， out of danger.無官一身輕。
    Out of sight， out of mind.眼不見，心為靜。
    Patience is the best remedy.忍耐是良藥。
    Penny wise， pound foolish.貪小便宜吃大虧。
    Plain dealing is praised more than practiced.正大光明者，說到的多，做到的少。
    Please the eye and plague the heart. 貪圖一時(shí)快活，必然留下隱禍。
    Pleasure comes through toil.苦盡甘來。
    Pour water into a sieve.竹籃子打水一場(chǎng)空。
    Practice makes perfect.熟能生巧。
    Praise is not pudding.恭維話不能當(dāng)飯吃。
    Praise makes good men better， and bad men worse.好人越夸越好，壞人越夸越糟。
    Prefer loss to unjust gain.寧可吃虧，不貪便宜。
    Prevention is better than cure.預(yù)防勝于治療。
    Pride goes before， and shame comes after.驕傲使人落后。
    Promise is debt.一諾千金。
    Proverbs are the daughters of daily experience.諺語是日常經(jīng)驗(yàn)的結(jié)晶。
    Pull the chestnut out of fire.火中取栗。
    Put the cart before the horse.本末倒置。
    Put your shoulder to the wheel.鼎力相助。
    Reading enriches the mind.開卷有益。
    Reading is to the mind while exercise to the body.讀書健腦，運(yùn)動(dòng)強(qiáng)身。
    Respect yourself， or no one else will respect you.要人尊敬，必須自重。
    Rome is not built in a day冰凍三尺，非一日之寒。
    Saying is one thing and doing another.言行不一。
    Seeing is believing.眼見為實(shí)。 Seek the truth from facts.實(shí)事求是。
    Send a wise man on an errand， and say nothing to him.智者當(dāng)差，不用交代。
    Set a thief to catch a thief.以賊捉賊。
    Short accounts make long friends.好朋友勤算賬。
    Something is better than nothing.聊勝于無。
    Soon learn， soon forgotten.學(xué)得快，忘得快。
    Soon ripe， soon rotten.熟得快，爛得快。
    Speech is silver， silence is gold.能言是銀，沉默是金。
    Still water run deep.靜水常深。
    Strike the iron while it is hot.趁熱打鐵。
    Success belongs to the persevering.堅(jiān)持就是勝利。
    Take things as they come.既來之，則安之。
    Talking mends no holes. 空談無補(bǔ)。
    Talk of the devil and he will appear.說曹操，曹操就到。
    Tall trees catch much wind.樹大招風(fēng)。
    Teach others by your example.躬親示范。