For a modest man, achievements serve as a vaulting-pole, with which he surmounts a new height in his future endeavour; for a conceited man, achievements serve as a slide, along which he falls far behind in his self-complancency.
 成绩是谦虚者的撑杆，促使他在新的努力中，跃进更高的境界。 成绩是骄傲者的滑梯，使他在沾沾自喜中，跌倒到最后面
 
For a morning rain leave not your journey
 不要因为早晨下了一场雨就不去旅行
 
For age and want, save while you may! No burning sun lasts a whole day.
 幼时防老，有时防无；朝阳虽好，难以终日
 
For every able person there is always one still abler.
 能人背后有能人 
 
For every evil under the sun, There is a remedy or there is none; If there be one, try and find it; If there be none, never mind it.
 世间的一切弊病， 有的可以救药，有的不可救药；有救药，努力去找；无救药，就别放在心上
 
For every one that does ill hates the light, and comes not to the light, lest his works should be reproved.
凡作恶的便恨光并躲避光，唯恐他的行为受到责备 西方箴言
 
For man is man and master of his fate.
 人就是人 ,是自己命运的主人 A.Tennyson 丁尼生
 
For one good deed a hundred ill deeds should be overlooked.
 一善足以消百恶
 
Forbidden fruit is sweet.
 禁果分外甜
 
Force can never destroy right.
 武力决不能摧毁正义
 
Forewarned is forearmed.
 凡事预则立
 
Forgive and forget.
 恢弘大度，勿念旧恶
 
Forgiving and being forgiven are two names for the same thing. The important thing is that a discord has been resolved.
 饶恕人和被饶恕是同一件事的两面 .重要的是嫌隙得到冰释
 
Fortune and misfortune are two baskets in a well.
 福与祸是一个井里打水的两个吊桶
 
Fortune favors the bold.
 天助勇者
 
Fortune favors the brave.
 天佑勇士
 
Fortune is easily found, but hard to be kept.
 找到福分易，保持福分难
 
Fortune is good to him who knows to make good use of her.
 知道用福的人才有福  英语格言
 
Fortune knocks at every man's door once in a life, but in a good many cases, the man is in a neighboring saloon and does not hear her.
 每个人的一生中，幸运女神都来敲过门，可是，许多人竟在隔壁的酒馆里，听不见她的敲门
 
Fortune knocks once at least at every man's gate.
 幸运之神至少在每人的门上敲一次 
 
Fortune never helps the man whose courage fails.
 运气永远不会帮助没有勇气的人  Sophocles 索福克勒斯
 
Four eyes see more than two.
 两人总比一人看得周到 
 
Freedom is the right to be wrong, not the right to do wrong.
自由是无意而犯错误的权利，而不是故意做错事的权利  J.G.Diefenbaker 迪芬贝克
 
Freedom lies in being bold.
 自由在于勇敢  R.Frost 弗罗斯特
 
Friends are like fiddle-strings, they must not be screwed too tight.
 琴弦不可太紧 ,朋友不可太亲
 
Friends are thieves of time.
 朋友是时间的浪费者 . /浪费朋友的时间,就是谋财害命
 
Friends may meet, but mountains never greet.
 山与山不会点头 ,人与人却能交友
 
Friends that desert us in the hour of need are friends in name, not in reality.
 在困难时刻背弃我们的是有名无实的朋友 
 
Friends tie their purses with a cobweb thread.
 朋友之间 ,不应扎紧钱袋