341. One man's fault is other man’s lesson。前车之鉴。

　　342. One never loses anything by politeness。讲礼貌不吃亏。

　　343. One swallow does not make a summer。一燕不成夏。

　　344. One's words reflect one’s thinking。言为心声。

　　345. Out of debt, out of danger。无债一身轻。

　　346. Out of office, out of danger。无官一身轻。

　　347. Out of sight, out of mind。眼不见心不烦。

　　348. Patience is the best remedy。忍耐是良药。

　　349. Pen and ink is wit's plough。笔墨是开拓才智之犁。

　　350. Penny wise pound foolish。贪小便宜吃大亏。

　　351. Pick your friends but not to pieces。交友要选择，但不可过分挑剔。

　　352. Plain dealing is praised more than practiced。称颂光明正大行为的人多，做到的人少。

　　353. Please the eye and plague the heart。贪图一时快活，必然留下隐患。

　　354. Pleasure comes through toil。苦尽甘来。

　　355. Pour water into a sieve。竹篮子大水一场空。

　　356. Practice makes perfect。熟能生巧。

　　357. Praise is not pudding。恭维话不能当饭吃。

　　358. Praise makes good men better and bad men worse。好人越夸约好，坏人越夸越坏。

　　359. Prefer loss to unjust gain。宁可吃亏，不贪便宜。

　　401. The die is cast。木已成舟

　　402. The early bird catches the worm。早起的鸟儿有虫吃

　　403. The end makes all equal。死亡面前人人平等

　　404. The eternal mystery of the world is its comprehensibility。世界的无穷奥秘在于它的可理解性。

　　405. The eye is bigger than the belly。贪多嚼不烂

　　406. The farthest way about is the nearest way home。欲速则不达

　　407. The finest diamond must be cut。玉不琢不成器

　　408. The fire is the test of gold, adversity of strong man。烈火验真金，艰难磨意志

　　409. The first step is the only difficulty。迈出第一步是最难的。

　　410. The fox knew too much that's how he lost his tail。机关算尽太聪明，反误了卿卿性命。

　　411. The fox preys farthest from home。兔子不吃窝边草

　　412. The frog in the well knows nothing of the great ocean。坐井观天

　　413. The grass is greener on the other side。这山望着那山高

　　414. The greatest talkers are always least doers。语言上的巨人往往是行动上的矮子。

　　415. The higher up, the greater the fall。爬得高摔得惨

　　416. The man who suffers much knows much。不经一事不长一智

　　417. The more noble, the more humble。人越高尚越谦虚

　　418. The more wit, the less courage。出生牛犊不怕虎

　　419. The outsider sees the most of the game。旁观者清

　　420. The pen is mightier than the sword。笔利于剑

　　421. The pot calls the kettle black。五十步笑百步

　　422. There are spots in the sun。太阳也有黑点

　　423. There are two sides to every question。问题皆有两面

　　424. There is a skeleton in the cupboard。家家有本难念的经

　　425. There is kindness to be found everywhere。人间处处有温情

　　426. There is no general rule without some exception。任何法规均有例外

　　427. There is no medicine against death。没有长生不老药

　　428. There is no place like home。金窝银窝不如咱的土窝

　　429. There is no royal road to learning。书山有路勤为径，学海无涯苦作舟