Feed a pig and you'll have a hog.

　　种瓜得瓜，种豆得豆。

　　Feed by measure and defy physician.

　　饮食有节制，医生无用处。

　　Few words are best.

　　少说为妙。

　　Few words, many deeds.

　　少说话，多做事。

　　Fine clothes make the man.

　　人要衣装。

　　Fine feathers make fine birds.

　　人要衣装，佛要金装。

　　Fine words butter no parsnips.

　　画饼充饥。

　　Fine words dress ill deeds.

　　漂亮的言词可以掩饰恶劣的行为。

　　Finished labours are pleasant.

　　大功告成，好不高兴。

　　Fire and water are good servants, but bad masters.

　　水火是忠仆，造灾成元凶。

　　Fire proves gold, adversity proves men.

　　烈火显真金，逆境识英雄。

　　Fire that's closest kept burns most of all.

　　关得最紧的火，燃烧得最炽烈。

　　Fire, water, and money are good servants, but bad masters.

　　水火金钱是忠仆，使用不当是祸首。

　　First catch your hare, then cook him.

　　不要谋之过早。

　　First come, first served.

　　先来先卖。

　　First impressions are most lasting.

　　最初的印象最为持久。

　　First think, and then speak.

　　先想後说。

　　First try, and then trust.

　　试了才能相信。

　　Fish begins to stink at the head.

　　上梁不正下梁歪。

　　Flattery brings friends, but the truth begets enmity.

　　奉承惹人喜，直言招人仇。

　　Follow love and it will flee, flee love and it will follow thee.

　　追求爱情，它要逃走;逃避爱情，它会跟你。

　　Fools grow without watering.

　　笨蛋自然成，无需浇水勤。

　　Fool's haste is no speed.

　　欲速则不达。

　　Fools have fortune.

　　戆人有戆福。

　　Fools make feasts and wise men eat them.

　　愚者设筵，智者赴宴。

　　Fools never know when they are well off.

　　傻瓜永远不知道他们何时能享福。

　　Fools rush in where angels fear to tread.

　　智者裹足不前，愚者铤而走险。

　　Fools will be fools.

　　笨蛋总是笨蛋。

　　Fools will be meddling.

　　愚者总好无事生非。

　　For age and want save while you may; no morning sun lasts a whole day.

　　为了年老和急须，要及时积蓄，因为早晨的太阳，不会整天照耀。

　　For a lost thing care nothing.

　　一事之失，不必介意。

　　Forbidden fruit is sweet.

　　禁果分外甜。

　　Force can never destroy right.

　　暴力绝不能摧毁正义。

　　Forget not that you are a man.

　　不要忘记你是一个人。

　　Forget others' faults by remembering your own.

　　想想自己的错，就会忘却别人的过。

　　Forgive and forget.

　　不念旧恶。

　　Forgive others but not yourself.

　　待人宽，对己严。

　　Fortune favours fools.

　　傻子有傻福。

　　Fortune favours the bold.

　　勇者天佑。

　　Fortune is fickle.

　　天有不测风云，人有旦夕祸福。

　　Fortune is good to him who knows to make good use of her.

　　知道利用幸福的人才有幸福。

　　Fortune knocks once at least at every man's door.

　　人人都有鸿运高照之日。

　　Fortune often rewards with interest those that have patience to wait for her.

　　只要有耐心，总会走好运。

　　Fortune smiles upon the brave and frowns upon the coward.

　　幸运喜欢勇敢的人，而不喜欢怯懦的人。